Examples for

Common Core Math: Grade 3: Numbers in Base Ten

In third grade, students use the concept of place value as a basis for performing arithmetic with multi-digit numbers, including adding and subtracting within one thousand and multiplying one-digit numbers by multiples of 10. Students also round numbers to the nearest 10 or 100.
Common Core Standards

Get information about Common Core Standards.

Look up a specific standard:

CCSS.Math.Content.3.NBT.A.1
third grade common core standard NBT.A.3

Search for all third grade standards in a domain:

third grade number and operations in base ten common core standards
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Rounding

Use place value to round whole numbers.

Round a number to a given place value (CCSS.Math.Content.3.NBT.A.1):

round 54 to the nearest 10
389 rounded to hundreds
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Addition & Subtraction

Perform addition and subtraction.

Add whole numbers (CCSS.Math.Content.3.NBT.A.2):

15 + 37
622 plus 341
add 24 to 18

Subtract whole numbers (CCSS.Math.Content.3.NBT.A.2):

76 - 48
difference between 729 and 358
subtract 22 from 58
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Multiplication

Perform multiplication.

Multiply single-digit whole numbers (CCSS.Math.Content.3.NBT.A.3):

7 * 8
5 times 3

Multiply a whole number by a multiple of 10 (CCSS.Math.Content.3.NBT.A.3):

4 * 10
70 * 8
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