Adding, Subtracting, and Rounding Review

Write the numbers that make this equation true.

(7 + 2) + 4 = 7 + ( ___ + 4)

Tags

CCSS.1.OA.B.3

The sum of any two numbers is the same no matter which number comes first.

• True

• False

Tags

CCSS.1.OA.B.3

Round 457 to the nearest ten.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Round 231 to the nearest ten.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Is the sum of two odd numbers odd or even?

• Odd

• Even

Tags

CCSS.3.OA.D.9

Leigh subtracts 269 from 762 and gets 493. Which addition equation can she use to check her answer?

• 762 - 269 = 493

• 493 - 269 = 224

• 269 + 493 = 762

• 493 + 762 - 1,055

Tags

CCSS.3.NBT.A.2

The sums of doubles facts are always even. What pattern can you notice in doubles-plus-one facts?

• They're always even.

• They're always odd.

Tags

CCSS.3.OA.D.9

Round 431 to the nearest hundred.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Round 789 to the nearest hundred.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3

Round 550 to the nearest hundred.

Tags

CCSS.3.NBT.A.1

CCSS.4.NBT.A.3