3.2 Round factors to estimate

To estimate means to find something close to the correct answer.

• True

• False

Tags

CCSS.4.MD.A.2

CCSS.4.OA.A.3

Which is used to estimate?

37 × 63?

• 40 × 70

• 40 × 60

• 30 × 60

Tags

CCSS.4.NBT.B.5

Which is used to estimate?

37 × 63

• 40 × 70

• 50 × 60

• 40 × 60

Tags

CCSS.4.NBT.B.5

Which is used to estimate?

37 x 41

• 40 x 40

• 30 x 40

Tags

CCSS.4.NBT.B.5

Which is used to estimate?

99 x 19

• 90 x 10

• 90 x 20

• 100 x 20

Tags

CCSS.4.NBT.B.5

Which is used to estimate?

99 x 59

• 90 x 50

• 100 x 60

• not this one

Tags

CCSS.4.NBT.B.5

Which is used to estimate?

401 x 89

• not this one

• 400 x 80

• 400 x 90

Tags

CCSS.4.NBT.B.5

Which is used to estimate?

608 x 88

• 600 x 80

• 600 x 90

• not this one

Tags

CCSS.4.NBT.B.5

Which is used to estimate?

788 x 41

• 800 x 40

• 700 x 40

• not this one

Tags

CCSS.4.NBT.B.5

Which is used to estimate?

999 x 8

• 900 x 8

• 1,000 x 8

• not this one

Tags

CCSS.4.NBT.B.5