Estimating Decimals to Whole Numbers Addition and Subtraction

Round 19.78 to the nearest whole number

• 19

• 20

• 21

• 22

Tags

CCSS.5.NBT.A.4

Round to the nearest whole number

• 387

• 388

• 389

• 390

Tags

CCSS.5.NBT.A.4

Round to the nearest WHOLE number to find the sum:

44.56 + 14.72

• 59.28

• 50

• 60

• 58

Round to the nearest WHOLE number to find the difference:

324.61 - 211.87

• 113

• 112.74

• 100

• 110

What is the best estimate for 12.98 + 7.3

• 19

• 21

• 20

• 20.28

Estimating is finding a value that is CLOSE or APPROXIMATE to the actual value, but it's not exact.

• True

• False

Roughly, approximately, and about are all clues for knowing when to round or estimate.

• True

• False

What is the sum of this addition problem?

• 0.83

• 83

• 0.083

• 1.83

Tags

CCSS.5.NBT.B.7

What is the subtraction sentence that represents this model?

• 33 - 0.35

• 133 - 35

• 1.33 - 35

• 1.33 + 0.35

Tags

CCSS.5.NBT.B.7