Estimating Products of Multi-Digit Numbers
Authored by Anthony Clark
Mathematics
4th Grade
CCSS covered
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Jenny is estimating the product of 29 x 66. She rounds the factors to 30 x 70 and gets a product of 2,100. Is that true or false?
true
false
Tags
CCSS.4.NBT.B.5
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Use Mental Math to solve: 50 x 90
4,000
6,300
5,400
4,500
Tags
CCSS.5.NBT.B.5
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
ROUND to estimate: 39 x 37
2,000
900
1,200
1,600
Tags
CCSS.4.NBT.B.5
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
ROUND to estimate: 25 x 81
1,800
2,400
1,600
2,700
Tags
CCSS.4.NBT.B.5
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A
B
C
D
Tags
CCSS.4.NBT.B.5
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which shows the best estimate to find 62 x 77?
60 x 70 = 4,200
60 x 80 = 4,800
65 x 75 = 4,875
62 x 100 = 6,200
Tags
CCSS.4.NBT.B.5
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which shows the best estimate to use for estimating 37 × 63?
40 × 70 = 2,800
50 × 60 = 3,000
40 × 60 = 2,400
30 × 60 = 1,800
Tags
CCSS.4.NBT.B.5
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