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Estimating 2 or 3 digit by 1 digit

Authored by Jennifer Helbig

Mathematics

4th Grade

Used 2+ times

Estimating 2 or 3 digit by 1 digit
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15 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A school purchased 8 boxes of chalk. Each box contained 196 pieces of chalk. Which number sentence shows the best way to use rounding to estimate the total number of pieces of chalk?

8 + 100 = 108

8 + 200 = 208

8 x 100 = 800

8 x 200 = 1,600

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

There are 24 hours in a day. Kendra's new puppy is 8 days old. Which is the best estimate of the number of hours Kendra's puppy has been alive? (Hint - don't round 24 - what number is it close to that is easy to count by?)

200

400

600

800

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of these is the closest estimate for 6 x 68?

6 x 11 = 66

6 x 60 = 360

6 x 80 = 480

6 x 70 = 210

4.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Which will cost less than $4,000?

6 rugs for $900 each

8 rugs for $600 each

7 rugs for $700 each

9 rugs for $400 each

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

A school purchased 6 boxes of chalk. Each box contained 189 pieces of chalk. Which number sentence shows the best way to use rounding to estimate the total number of pieces of chalk?

6 + 100 = 106

6 + 200 = 206

6 x 100 = 600

6 x 200 = 1,200

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Which of these is the closest estimate for 7 x 59?

7 x 11 = 77

7 x 60 = 420

7 x 50 = 350

7 x 70 = 490

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Which will cost more than $500?

6 lamps for $92 each

8 lamps for $44 each

5 lamps for $76 each

9 lamps for $51 each

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