| fraction | subtraction | add and subtraction | add doubles | subtracting doubles |
|---|---|---|---|---|
|
2
What is 1+1
|
What is 4
5-1
|
What is 5
(1+1)+(8-5)
|
What is 14
7+7
|
|
|
What is 50
10+40
|
What is 10
10-0
|
What is 28
(10+1)+(9+8)
|
What is 24
12+12
|
|
|
What is 90
80+10
|
What is 7
10-3
|
What is 17
(7+1)+(8+1)
|
What is 12
6+6
|
|
|
What is 10
5+5
|
What is 100
100-1
|
What is 4
(1+1)+(1+1)
|
What is 16
8+8
|
|
|
What is 750
700+50
|
What is 75
80-5
|
What is 24
(6+6)+(6+6)
|
What is 20
10+10
|
|
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