# Number Bond Flashcards

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Number bonds for the number 12: 0+12=12; 1+11=12; 2+10=12; 3+9=12; 4+8=12; 5+7=12; 6+6=12

In reverse order: 12+0=12; 11+1=12; 10+2=12; 9+3=12; 8+4=12; 7+5=12; 6+6=12

Number bonds for the number 11: 0+11=11; 1+10=11; 2+9=11; 3+8=11; 4+7=11; 5+6=11

In reverse order: 11+0=11; 10+1=11; 9+2=11; 8+3=11; 7+4=11; 6+5=11

Number bonds for the number 10: 0+10=10; 1+9=10; 2+8=10; 3+7=10; 4+6=10; 5+5=10

In reverse order: 10+0=10; 9+1=10; 8+2=10; 7+3=10; 6+4=10; 5+5=10

Number bonds for the number 9: 0+9=9; 1+8=9; 2+7=9; 3+6=9; 4+5=9

In reverse order: 9+0=9; 8+1=9; 7+2=9; 6+3=9; 5+4=9

Number bonds for the number 8: 0+8=8; 1+7=8; 2+6=8; 3+5=8; 4+4=8

In reverse order: 8+0=8; 7+1=8; 6+2=8; 5+3=8; 4+4=8

Number bonds for the number 7: 0+7=7; 1+6=7; 2+5=7; 3+4=7

In reverse order: 7+0=7; 6+1=7; 5+2=7; 4+3=7

Number bonds for the number 6.

0+6=6

1+5=6

2+4=6

3+3=6

In reverse order:

6+0=6

5+1=6

4+2=6

3+3=6

Number bonds for the number 5: 0+5=5; 1+4=5; 2+3=5

In reverse order: 5+0=5; 4+1=5; 3+2=5

Number bonds for the number 4: 0+4=4; 1+3=4; 2+2=4

In reverse order: 4+0=4; 3+1=4; 2+2=4

Number bonds for the number 3.

0+3=3

1+2=3

In reverse order:

3+0=3

2+1=3

Number bonds for the number 2.

0+2=2

1+1=2

In reverse order:

2+0=2

1+1=2

Number bonds for the number 1:

1+0=1

0+1=1

**Number bonds**show the relationship between different sets of numbers that can be added together to equal the same number (answer).

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## Flashcard Content Overview

This flashcard set covers the basics of number bonds. The set includes 25 cards. There are 20 cards that shows the number bonds for the whole numbers 1-20. There are 5 cards that provide practical application practice using number bonds to solve addition/subtraction math problems.

**Number bonds**show the relationship between different sets of numbers that can be added together to equal the same number (answer).

Number bonds for the number 1:

1+0=1

0+1=1

Number bonds for the number 2.

0+2=2

1+1=2

In reverse order:

2+0=2

1+1=2

Number bonds for the number 3.

0+3=3

1+2=3

In reverse order:

3+0=3

2+1=3

Number bonds for the number 4: 0+4=4; 1+3=4; 2+2=4

In reverse order: 4+0=4; 3+1=4; 2+2=4

Number bonds for the number 5: 0+5=5; 1+4=5; 2+3=5

In reverse order: 5+0=5; 4+1=5; 3+2=5

Number bonds for the number 6.

0+6=6

1+5=6

2+4=6

3+3=6

In reverse order:

6+0=6

5+1=6

4+2=6

3+3=6

Number bonds for the number 7: 0+7=7; 1+6=7; 2+5=7; 3+4=7

In reverse order: 7+0=7; 6+1=7; 5+2=7; 4+3=7

Number bonds for the number 8: 0+8=8; 1+7=8; 2+6=8; 3+5=8; 4+4=8

In reverse order: 8+0=8; 7+1=8; 6+2=8; 5+3=8; 4+4=8

Number bonds for the number 9: 0+9=9; 1+8=9; 2+7=9; 3+6=9; 4+5=9

In reverse order: 9+0=9; 8+1=9; 7+2=9; 6+3=9; 5+4=9

Number bonds for the number 10: 0+10=10; 1+9=10; 2+8=10; 3+7=10; 4+6=10; 5+5=10

In reverse order: 10+0=10; 9+1=10; 8+2=10; 7+3=10; 6+4=10; 5+5=10

Number bonds for the number 11: 0+11=11; 1+10=11; 2+9=11; 3+8=11; 4+7=11; 5+6=11

In reverse order: 11+0=11; 10+1=11; 9+2=11; 8+3=11; 7+4=11; 6+5=11

Number bonds for the number 12: 0+12=12; 1+11=12; 2+10=12; 3+9=12; 4+8=12; 5+7=12; 6+6=12

In reverse order: 12+0=12; 11+1=12; 10+2=12; 9+3=12; 8+4=12; 7+5=12; 6+6=12

Number bonds for the number 13: 0+13=13; 1+12=13; 2+11=13; 3+10=13; 4+9=13; 5+8=13; 6+7=13

In reverse order: 13+0=13; 12+1=13; 11+2=13; 10+3=13; 9+4=13; 8+5=13; 7+6=13

Number bonds for the number 14: 0+14=14; 1+13=14; 2+12=14; 3+11=14; 4+10=14; 5+9=14; 6+8=14; 7+7=14

In reverse order: 14+0=14; 13+1=14; 12+2=14; 11+3=14; 10+4=14; 9+5=14; 8+6=14; 7+7=14

Number bonds for the number 15: 0+15=15; 1+14=15; 2+13=15; 3+12=15; 4+11=15; 5+10=15; 6+9=15; 7+8=15

In reverse order: 15+0=15; 14+1=15; 13+2=15; 12+3=15; 11+4=15; 10+5=15; 9+6=15; 8+7=15

Number bonds for the number 16: 0+16=16; 1+15=16; 2+14=16; 3+13=16; 4+12=16; 5+11=16; 6+10=16; 7+9=16; 8+8=16

In reverse order: 16+0=16; 15+1=16; 14+2=16; 13+3=16; 12+4=16; 11+5=16; 10+6=16; 9+7=16; 8+8=16

Number bonds for the number 17: 0+17=17; 1+16=17; 2+15=17; 3+14=17; 4+13=17; 5+12=17; 6+11=17; 7+10=17; 8+9=17

In reverse order: 17+0=17; 16+1=17; 15+2=17; 14+3=17; 13+4=17; 12+5=17; 11+6=17; 10+7=17; 9+8=17

Number bonds for the number 18.

0+18=18

1+17=18

2+16=18

3+15=18

4+14=18

5+13=18

6+12=18

7+11=18

8+10=18

9+9=18

In reverse order:

18+0=18

17+1=18

16+2=18

15+3=18

14+4=18

13+5=18

12+6=18

11+7=18

10+8=18

9+9=18

Number bonds for the number 19: 0+19=19; 1+18=19; 2+17=19; 3+16=19; 4+15=19; 5+14=19; 6+13=19; 7+12=19; 8+11=19; 9+10=19

In reverse order: 19+0=19; 18+1=19; 17+2=19; 16+3=19; 15+4=19; 14+5=19; 13+6=19; 12+7=19; 11+8=19; 10+9=19

Number bonds for 20: 0+20=20; 1+19=2; 2+18=20; 3+17=20; 4+16=20; 5+15=20; 6+14=20; 7+13=20; 8+12=20; 9+11=20; 10+10=20

In reverse order: 20+0=20; 19+1=20; 18+2=20; 17+3=20; 16+4=20; 15+5=20; 14+6=20; 13+7=20; 12+8=20; 11+9=20; 10+10=20

Think about the number bonds that create the number 29.

Next, solve the following problem:

22 + _____ = 29

You can take a shortcut and start from 20.

20+9=29

21+8=29

22+7=29

You can stop here because you found the answer.

22+7=29. 7 is the answer.

So, if

22+7=29

then,

7+22=29

and

29-22=7

29-7=22

Think about the number bonds that create the number 11.

Next, solve the following problem:

5 + _____ =11

You can start from 1: 1+10=11; 2+9=11; 3+8=11; 4+7=11; 5+6=11

You can stop here because you found the answer.

5+6=11

6 is the answer.

So, if 5+6=11 then, 6+5=11 and 11-5=6 and11-6=5

Think about the number bonds that create the number 19.

Next, solve the following problem:

13 + _____ = 19

You can start from 10: 10+9=19; 11+8=19; 12+7=19; 13+6=19

You can stop here because you found the answer: 13+6=19

6 is the answer.

So, if 13+6=19 then, 6+13=19 and 19-13=6 and 19-6=13

Solve:

32 + _____ = 45

Think about the number bonds for 45.

You can start with: 30+15=45; 31+14=45; 32+13=45

You can stop here because you found the answer: 32+13=45.

13 is the answer.

Or you can subtract: 45-32=13

Solve:

8 + _____ = 15

Think about the number bonds for 15.

You can start with:

5+10=15

6+9=15

7+8=15

You can stop here. Even in reversed order, we can see that 7 is the answer.

7+8=15

and

8+7=15

Or you can subtract to find and check your answer:

15-8=7

15-7=8

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Math Flashcards9 chapters | 52 lessons | 52 flashcard sets