Adding and subtracting decimal numbers
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Mathematics
5th Grade
CCSS covered
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20 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Chris ran a race in 13.2 minutes. George ran a race in 13.54 minutes. What is the sum of their running times, rounded to the nearest tenth?
26.74
26.70
Tags
CCSS.3.NBT.A.1
CCSS.4.NBT.B.4
CCSS.5.NBT.B.7
2.
FILL IN THE BLANK QUESTION
30 sec • 5 pts
Estimate to the nearest PLACE VALUE and solve:
947.4 − 462.7
Tags
CCSS.3.NBT.A.1
CCSS.4.NBT.B.4
CCSS.5.NBT.B.7
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Estimate the sum of the expression 4.91 + 15.04 to the nearest integer.
21
19
20
-20
18
Tags
CCSS.3.NBT.A.1
CCSS.4.NBT.B.4
CCSS.5.NBT.B.7
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Choose a good pair of compatible numbers to make finding the sum of 223.4 + 148.9 easier to add mentally.
200 + 100
223 + 149
225 + 150
They're already compatible.
Tags
CCSS.3.NBT.A.1
CCSS.4.NBT.B.4
CCSS.5.NBT.B.7
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a reasonable estimate of the sum of 2.25 and 1.23?
7
0.5
3
16.00
Tags
CCSS.3.NBT.A.1
CCSS.4.NBT.B.4
CCSS.5.NBT.B.7
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Round to the nearest WHOLE number to find the sum:
44.56 + 14.72
59.28
50
60
58
Tags
CCSS.3.NBT.A.1
CCSS.4.NBT.B.4
CCSS.5.NBT.B.7
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Estimate the sum:
58.321 + 67.043
9
125.364
200
125
Tags
CCSS.3.NBT.A.1
CCSS.4.NBT.B.4
CCSS.5.NBT.B.7
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