Addition
If one number is less than 5, you can count on to add.
4 + 8 |
Hint: Start with the bigger number, 8, then count 4 more: 9, 10, 11, |
6 + 3 |
Hint: Start with the bigger number, , then count more: , | 3 + 9 |
4 + 12 |
16 + 2 |
3 + 14 |
If both numbers are more than 5,
split the smaller number to make a 10 with the larger.
7 + 8 |
8 + 2 = 10, so split the 7 into 5 and 2. 5 + 2 + 8 = 5 + 10 = |
9 + 7 |
9 + 1 = 10, so split the 7 into 1 and . 9 + 1 + = 10 + = |
3 + 14 |
8 + 9 |
6 + 7 |
6 + 17 |
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