estimating sums and differences
Authored by Mark Collins
Mathematics
3rd - 7th Grade
CCSS covered
Used 7+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Round to the TENS and then add.
300 + 100 = 500
350 + 120 = 470
300 - 100 = 200
Tags
CCSS.3.NBT.A.1
CCSS.3.NBT.A.2
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Round to the TENS place and then subtract
700 - 200 = 500
800 - 200 = 600
770 - 260 = 510
Tags
CCSS.3.NBT.A.1
CCSS.3.NBT.A.2
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Round the the TENS place and then subtract.
300 - 100 = 200
200 - 100 = 100
250 - 150 = 100
Tags
CCSS.3.NBT.A.1
CCSS.3.NBT.A.2
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Round to the HUNDREDS and then subtract.
400 + 200 = 600
500 + 200 = 700
500 - 200 = 300
Tags
CCSS.3.NBT.A.1
CCSS.3.NBT.A.2
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Round to the HUNDREDS place and then add.
400 + 100 = 500
400 + 200 = 600
400 + 200 = 500
Tags
CCSS.3.NBT.A.1
CCSS.3.NBT.A.2
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Round to the TENS place and then add.
450 + 210 = 660
500 + 200 = 600
500 + 200 = 700
Tags
CCSS.3.NBT.A.1
CCSS.3.NBT.A.2
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Round to the HUNDREDS place and then subtract.
500 - 200 = 300
600 - 200 = 300
600 - 200 = 400
Tags
CCSS.3.NBT.A.1
CCSS.3.NBT.A.2
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