Fraction Addition and Subtraction
Authored by Brant Polkowski
Mathematics
5th Grade
CCSS covered
Used 63+ times
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13 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
2/3 + 2/3 =
They don't speak the same language. We must find the common multiples of 3 and 3.
4/6
4/3
4/9
Tags
CCSS.4.NF.B.3C
CCSS.4.NF.B.3D
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When we add and subtract fractions, they must _____ the ____ __________.
talk; French language
speak; same language
add; same denominator
dance; same ballerina
Tags
CCSS.4.NF.B.3C
CCSS.4.NF.B.3D
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What should Carl do next?
Circle "6" and use it as the common denominator
Circle "12" and use it as the common denominator
Add 1/3 + 3/4 and get 4/7
List all of the multiples of 1
Tags
CCSS.5.NF.A.1
CCSS.5.NF.A.2
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Why are the denominators both 12 on the bottom?
Because 1/3 x 3/4 = 3/12 - when we multiply 12 is the denominator
Because you can pick any denominator you want - it's a free country, isn't it?
Because 12 is the lowest common multiple of both 3 and 4
Trick question! The denominator SHOULD be 24!
Tags
CCSS.5.NF.A.1
CCSS.5.NF.A.2
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
What goes in the pink box?
x4
x3
x12
x1
Tags
CCSS.5.NF.A.1
CCSS.5.NF.A.2
6.
FILL IN THE BLANK QUESTION
45 sec • 1 pt
What goes in the RED box?
Tags
CCSS.5.NF.A.1
CCSS.5.NF.A.2
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
LOOK CLOSELY: what mistake has CJ made?
Trick Question - CJ never make no mystak
CJ skipped 10 - 10 is a multiple of both 3 and 9.
CJ didn't circle 9 - 9 is the lowest common multiple!
CJ didn't multiply 3 and 9 together and get 27!
Tags
CCSS.5.NF.A.1
CCSS.5.NF.A.2
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