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Practice time 4c

Subtract the following using the number line.

1. 13 – 6 =

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

2. 19 – 9 =
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

3. 15 – 8 =

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

4. 11 – 7 =
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

5. 10 – 2 =

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Subtraction FactS

Count the number of objects that are not crossed and fill in the boxes.

Subtraction facts of 1 Subtraction facts of 2

1 – 0 = 1 2 – 0 = 2

1 – 1 = 0 2 – 1 = 1

2 – 2 = 0

Subtraction facts of 3 Subtraction facts of 4

3 – 0 = 3 4 – = 4

3 – 1 = – 1 = 3

– 2 = 1 – = 2

– = 0 4 – 3 =

– = 0

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