Enter numeric value with unit of measurement answers

Updated 31 Jul 2021

You lot can enter answers to number with unit questions on a estimator, tablet, or smartphone.
To get full credit on these questions: Enter BOTH the value and unit parts of the respond, such as 26 kg. Sometimes the unit is provided for y'all.

collapsedOverview: Answering on a computer or mobile device

These instructions utilise to entering answers in either the Value or Units answer boxes.

  • Toolbar for these questions on a computer:

  • Toolbar for these questions on a mobile device:

Enter answers on a reckoner Enter answers on mobile device*
(tablet or smartphone)

Toolbar

  • Utilize the Templates menu for special formats similar exponent and fraction.
  • Use the Symbols carte du jour for symbols similar percent and degrees.
  • To undo, redo, and reset the answer box to its original land: Use toolbar buttons.
  • To view or print keyboard shortcuts or this Help topic: Click buttons on the right.
  • To begin, tap in an answer box for the toolbar to appear below.
  • Cull buttons from the Messages, Numeric, Templates, and Symbols menus to compose your answer.
  • To undo, redo, and reset the answer box to its original state: Use toolbar buttons on the right.
Keyboard for letters and numbers
  • Use your physical keyboard to enter letters, numbers, and other characters.
  • Meet info below for characters you can or cannot use in your answers.
  • Choose either the Letters bill of fare or the Numeric bill of fare for alphanumeric characters and some math symbols.
  • To switch between lowercase and upper-case letter keys: Choose the pointer button from the Letters menu.
Keyboard shortcuts for special formats(like subscript)
  • It can be faster to use keyboard shortcuts instead of the Templates menu to insert special formats.
  • For keyboard shortcuts that begin with \ (backslash), choose \ from the Messages card.
Cursor control in your answer
  • Utilise your keyboard arrow keys (Right arrow, Left arrow, Up arrow, Down arrow) to motion the cursor in your answer or between Value and Units answer boxes.
  • It tin be easier to use arrow keys instead of a mouse or other input device to reposition your cursor.
  • Utilise your finger or other input device to position the cursor in an answer or in the other answer box.
  • For effectively cursor control on a phone: Overstate your view of the answer box earlier moving the cursor.
  • If cursor control on your telephone is challenging: Consider using your computer or a tablet.

* Answering assignment questions in Mobile View requires a pupil account. When you sign in on a mobile device, you can check whether your browser supports Mastering mobile content.

Enter the Value part of your answer

Select the Value box (the discussion Value disappears) and enter your answer.
If y'all submit an incorrect value: You lose an respond attempt.

collapsedCharacters you can or cannot utilize for value

You can enter whatever of the numeric characters and symbols shown in the table below.
Integers (such as 1024), decimal numbers (such as ane.024), and scientific notation (such every bit v.2*104) are all acceptable. For scientific notation, you can either apply your keyboard or choose this format from the Templates menu.

You cannot enter commas, algebraic expressions, or calculations. The built-in adding feature is not available for Value answers.

Adequate numeric characters and symbols Notes Bachelor from this menu (on mobile devices)
0-nine You can enter these characters straight or into a special format, like a subscript.

Numeric
* For multiplication

Numeric

. For decimal signal Numeric
^ For exponent format

Numeric

()

When you enter the first part, it displays in red until you lot shut the expression.

Numeric
/

For fraction format

Numeric

collapsedInsert exponent, subscript, fraction, dot, or scientific note for value

To enter... Cull this from the Templates menu: Or, enter this keyboard shortcut:

Examples/Notes

Instead of pressing right arrow key or down arrow key below, you can as well reposition your cursor.

Exponent

(Superscript)

 exponent (superscript) template format ^
(caret)

To enter 10 cubed, either:

  • Enter ten, choose exponent (superscript) template format, and enter 3
  • Enter: 10^three right arrow key two
Subscript subscript template format _
(underbar)

To enter 5 subscript 3, either:

  • Enter 5, cull subscript template format, and enter 3
  • Enter: 5_3
Fraction fraction template format /

To enter two thirds (2 over 3), either:

  • Cull fraction template format, type 2 , printing down arrow key, and enter 3
  • Enter: 2/3 or /ii down arrow key 3

To move betwixt the peak and bottom parts of a fraction: Utilize the pointer keys from your computer keyboard or reposition your cursor using an input device.

Dot

(for multiplication)

 dot *
(asterisk)

To enter 79 either:

  • Enter 7, cull dot, and enter ix
  • Enter: 7*9
Scientific annotation * (asterisk for multiplication dot)

^
(caret for exponent)

To enter 5.2*x3, either:

  • Cull , type v.ii, right arrow key right arrow key right arrow key up arrow and enter 3 in the exponent format.
  • Enter: 5.two*10^iii

To edit the provided "10": Press the right arrow keyright pointer key to position your cursor, and then delete or add digits using your keyboard. You can besides delete by choosing Delete from the provided toolbar.

Grading tolerance and significant figures

Enter the Units function of your answer

Cull the Units box (the word Units disappears) and enter a unit of measurement abbreviation, fabricated upward of adequate characters and symbols. View list of recognized units

  • If yous submit an incorrect answer using an unrecognized unit of measurement: You do Not lose an answer attempt. You may receive some feedback well-nigh how to enter the unit format correctly.
  • If yous submit an incorrect reply using a recognized unit: You lose an answer attempt and any associated credit.

collapsed Important: Rules for inbound units

  • Use only unit abbreviations. Practise Not add a period subsequently any unit.
  • Units are case-sensitive.
  • Mastering tin can have as correct a unit answer that is equivalent to the right reply. For example, if the correct reply is 2 V and you enter 2000 mV, you will receive full credit. See next point for an exception to this dominion.
  • Both SI (International System of Units) and U.S. Customary units are represented on the list of units that Mastering recognizes, so you tin can gain credit by answering correctly using either an SI unit of measurement or a US Customary unit of measurement.

    Exception: When a question asks you lot to respond using a specific unit system, you must reply in that unit organisation. If you reply using the incorrect unit arrangement, you will lose an answer attempt and whatever associated credit, fifty-fifty if your answer would otherwise be considered equivalent.

  • For multiplication in compound units, you can enter either * (centered dot) or - (dash). For instance, ft dot lb and ft-lb are accepted every bit equivalent correct units.

collapsedUnit forms you can enter

  • Single unit, such as N, J, angstrom symbol, Ohms symbol, and degree symbolC
  • Single unit of measurement with prefix, such equally MeV or mu (Greek letter symbol) F
  • Chemical compound unit, such as Nmath_num_units_dotm, ft-lb, kg-m/s, m/due south
    To betoken multiplication in compound units: Use either * (displays as the centered dot) or -.
  • Compound unit with prefix, such every bit kNmath_num_units_dotk

collapsedAcceptable characters and symbols for units

In addition to the symbols in this table, you tin can enter the symbols for angstrom, degrees, mu, ohms, and percent. See section below for instructions.

Acceptable characters and symbols Notes Bachelor from this carte du jour (on mobile devices)
a-z, A-Z You can enter these characters directly or into a special format, like a fraction.

Letters

()

When you enter the first role, it displays in red until you close the expression.

Numeric
* For multiplication of units

Numeric

- Numeric
/

For fraction format

Numeric

^ For exponent format

Numeric

_ For subscript format

Numeric

\ To begin a keyboard shortcut, such as \deg (for degrees)

Messages

collapsedInsert exponent, subscript, fraction, or dot for units

To enter... Choose this from the Templates carte du jour: Or, enter this keyboard shortcut:

Examples/Notes

Instead of pressing right arrow key or down arrow key below, you can also reposition your cursor.

Exponent

(Superscript)

 exponent (superscript) template format ^
(caret)

To enter k4, either:

  • Enter m, choose exponent (superscript) template format, press right arrow key, and enter 4.
  • Enter: yard^iv
Subscript subscript template format _
(underbar)

To enter O subscript 2, either:

  • Enter O, cull subscript template format, and enter 2
  • Enter: O_2
Fraction fraction template format /

To enter a unit with multiplication in the numerator, such as newton meter per radian : Choose fraction template format from the Templates carte du jour for the right format. (You lot cannot apply /.)

To enter mol over h, either:

  • Choose fraction template format, enter mol , press down arrow key, and enter h
  • Enter: mol/h or /mol down arrow key h

To move between the top and bottom parts of a fraction: Use the arrow keys from your figurer keyboard or reposition your cursor using an input device.

Dot

(for multiplication)

 dot *
(asterisk)

To enter ftlb, either:

  • Enter ft, choose dot, and enter lb
  • Enter: ft*lb

To piece of work with or edit your value with unit answers

collapsedEdit a value or unit answer (undo, redo, reset, delete, or re-create and paste)

Click in or choose the Value or Units answer box you desire to edit. After y'all click in or make edits in one box, yous tin motion to the other answer box using the right arrow key right arrow or left arrow cardinal from your keyboard.

Edit Instructions

Undo

  • Choose undo to undo your previous deportment in reverse order—i activity per click (or tap/touch, on a mobile device).
  • Alternatively, press Ctrl+Z (Windows) or Command-Z (Mac Bone) from your computer keyboard.
Redo
  • Choose redo to redo the previous action.
  • Alternatively, press Ctrl+Y (Windows) or Command-Y (Mac Bone) from your computer keyboard.
Reset
  • Cull reset to articulate your workspace.
  • If yous want to start over: This is the easiest way!
Delete
  •  Delete push button: Deletes individual characters from left to right. Y'all can as well use the Delete primal on your computer keyboard.
    For a specially formatted expression (such as a fraction): Printing Delete once to select the item, and so printing Delete again to delete it.
  • Backspace key (on a keyboard): Deletes private characters from correct to left.
    For a specially formatted expression (such every bit a fraction): Printing Backspace one time to select the item, then press Backspace over again to delete it.
  • Keyboard shortcut to cut: You tin can use standard keyboard shortcuts (Ctrl-X for Windows, Command-10 for Mac OS) to cut an answer or parts of an answer. See Step i below for details about selecting characters.
Re-create and paste

These instructions apply when using a reckoner.

  1. Select the part of the expression you lot want to re-create.

    2. To select private characters or particularly formatted expressions (such as a fraction): Click and drag your input device or hold downward the Shift key and press either the left or correct arrow key. Continue to press the arrow key for each additional character or format.

  2. Re-create using a standard keyboard shortcut: Ctrl+C (Windows) or Command-C (Mac Os).
  3. Paste using a standard keyboard shortcut: Ctrl+Five (Windows) and Command-V (Mac OS).

More nigh numeric with units answers

collapsedTo view keyboard shortcuts or this Help topic as you lot work

For shortcuts, select Keyboard shortcuts from the answer box toolbar. To view these Aid instructions, select Help from the answer box toolbar and so cull Enter numeric value with unit of measurement answers on the page that opens. The keyboard shortcuts and this Aid topic are bachelor when you're working on a figurer, merely not in Mastering'southward Mobile view on mobile devices.