Subtraction up to 20 Flashcards

0
Q

19 - 1

A

18

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1
Q

20 - 5

A

15

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2
Q

20 - 2

A

18

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2
Q

4 - 1

A

3 minus one is the next smaller number

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3
Q

2 - 1

A

1 minus one is the next smaller number

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3
Q

14 - 1

A

13

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4
Q

12 - 1

A

11

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5
Q

20 - 17

A

3

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5
Q

5 - 1

A

4 minus one is the next smaller number

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6
Q

20 - 16

A

4

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6
Q

3 - 1

A

2 minus one is the next smaller number

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7
Q

20 - 7

A

13

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8
Q

20 - 13

A

7

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9
Q

20 - 9

A

11

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9
Q

16 - 1

A

15

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10
Q

10 - 1

A

9

11
Q

11 - 1

A

10

13
Q

20 - 14

A

6

15
Q

20 - 1

A

19

16
Q

7 - 1

A

6

17
Q

20 - 10

A

10

18
Q

20 - 18

A

2

19
Q

18 - 1

A

17

21
Q

20 - 12

A

8

23
Q

20 - 4

A

16

24
Q

15 - 1

A

14

25
Q

17 - 1

A

16

26
Q

8 - 1

A

7

27
Q

20 - 3

A

17

29
Q

9 - 1

A

8

30
Q

13 - 1

A

12

31
Q

1 - 1

A

0 nothing

32
Q

20 - 15

A

5 same answer as 15 + 5 = 20 only 5 skips between 15 and 20

33
Q

20 - 11

A

9

34
Q

6 - 1

A

5 minus one is the next smaller number

35
Q

20 - 19

A

1 the difference between 20 and 19 is only one skip

37
Q

20 - 8

A

12

38
Q

20 - 1

A

19