1. 10＋4 10＋6 10＋3 10＋1 10＋9 10＋5 10＋2 10＋8 8+□=10 6+□=10 5+□=10 7+□=10
9+□=10
4+□=10
3+□=10
2+□=10
10＋4
10＋6
10＋3
10＋1
10＋9
10＋5
10＋2
10＋8

2. Carry Addition 3＋2 6＋7 5＋4 7＋4 4＋3 8＋9 sum is less than 10
sum is more than 10
Carry Addition
1-digit-number+1-digit-number=1-digit-number
1-digit-number+1-digit-number=2-digit-number

3. 9＋5＝
Make 10
How to place the sticks in a most quick way so you can find the answer immediately?
Why should we make a ten at the beginning?

4. 14 1 4 9＋5＝ 9+1=10 10+4=14 First step: Second step:
How do we make a ten?

5. 9＋5＝ 1 4 ＋5 ＋4 ＋1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 14
9＋1＋4＝ 10
圆点图

6. 9＋5＝ 14 1 4
9+1=10
First step:
Second step:
10+4=14

7. 14
9＋5＝ 4 5
5+5=10
First step:
Second step:
10+4=14

8. Count:How many strawberries?

9. Circle and calculate:
9+5＝ 14

10. Write down the steps by the picture.
7+4=( )
_________
First step:
_________
Second step:
Write down the steps by the picture.

11. Write down the steps by the picture.
5+7=( )
_________
First step:
_________
Second step:
Write down the steps by the picture.

12. 6+5
7+7
3+9
8+7
9+7 13 11 15 14 16 17