Number bonds

1
Sums up to 1
2
Sums up to 2
3
Sums up to 3
4
Sums up to 4
5
Sums up to 5
6
Sums up to 6
7
Sums up to 7
8
Sums up to 8
9
Sums up to 9
10
Sums up to 10
11
Sums up to 11
12
Sums up to 12
13
Sums up to 13
14
Sums up to 14
15
Sums up to 15
16
Sums up to 16
17
Sums up to 17
18
Sums up to 18
19
Sums up to 19
20
Sums up to 20
21
Sums up to 25
22
Sums up to 30
23
Sums up to 35
24
Sums up to 100
25
Sums up to 1000
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Recent activities in this game

Someone had a problem at level 9. Sums up to 9 .
22 minutes ago after 3 seconds of playing.
Someone had a problem at level 1. Sums up to 1 .
22 minutes ago after 11 seconds of playing.
Someone had a problem at level 6. Sums up to 6 .
45 minutes ago after 4 seconds of playing.
Someone had a problem at level 24. Sums up to 100 .
1 hour ago after 2 minutes of playing.
Someone got all questions correct at level 10. Sums up to 10 .
1 hour ago after 31 seconds of playing.
Someone had a problem at level 10. Sums up to 10 .
1 hour ago after 36 seconds of playing.
Someone got all questions correct at level 9. Sums up to 9 .
1 hour ago after 40 seconds of playing.
Someone got all questions correct at level 8. Sums up to 8 .
1 hour ago after 50 seconds of playing.
Someone got all questions correct at level 7. Sums up to 7 .
1 hour ago after 31 seconds of playing.
Someone got all questions correct at level 6. Sums up to 6 .
1 hour ago after 39 seconds of playing.

Are you aware of all number bonds? Practice all number bonds to learn how numbers are split or combined in addition.

The game Number bonds

Game instructions for number bonds

What is a number bond? It's a fun way of showing how numbers are split and combined in addition. What other number, in addition to the given number, adds up to the whole? Each level generates up to 10 number bonds for the chosen sum. Number bonds are also called complementary numbers.

The number bonds are different each time you attempt a certain level. You must enter the correct number bond in order to proceed in the game. If you enter the wrong number, then it will be marked with a red border around the number. If it's too difficult, you can always change level by clicking the button Give up. When you practice the number bonds in this game knowledge, your mental arithmetic is also excercised and it will be easier to count.

Calculation of knowledge points

Each completed game level gives 1 knowledge point in Number bonds. The maximum number of points (25 knowledge points) is achieved when you pass all 25 levels. You'll get a bronze medal when you complete a level 2 times and a silver medal after 5 completed rounds. A gold medal will be received after 10 completed rounds. In Number bonds, the maximum number of collectable gold medals is 25. You only earn knowledge points for levels that has not been cleared before. A cleared level has a green background above. Even when you have completed a level, you can continue practicing at that level, but it gives you no more knowledge points.

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Additional game information

Subject
Math
Target group
First grade - Fifth grade
Practices
Numbers Addition Mental calculation Number bonds
Game creator
Helpful Games
Updated
2019-09-26
Published online
2011-11-11
Unique id
4
Saved by
0-5 users
Price
Free of charge

Reviews

3.6
Total 59
5
33
4
3
3
3
2
6
1
14

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