Estimating and Multiplication
Authored by Anthony Clark
Mathematics
4th Grade
CCSS covered
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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Isabelle has 6 ant farms. Each ant farm has 89 ants. Which of the following shows a reasonable estimate of how many ants Isabelle has?
7x125=875
8x110=880
6x90=540
10x100=100
Tags
CCSS.4.NBT.B.5
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
243 x 8
1,952
1,944
1,864
1,954
Tags
CCSS.4.NBT.B.5
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How would you estimate 67 x 44
70 x 40
70 x 50
67 x 44
67 x 50
Answer explanation
when you estimate you round numbers so that they are easier to complete with mental math.
Tags
CCSS.4.NBT.B.5
4.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
82 x 900 = (a)
Tags
CCSS.5.NBT.B.5
5.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
49 x (a) = 4900
Tags
CCSS.5.NBT.A.2
6.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
36 x 7 =
(a)
Tags
CCSS.4.NBT.B.5
7.
FILL IN THE BLANKS QUESTION
1 min • 1 pt
70 x 800 = (a)
Tags
CCSS.4.NBT.B.5
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