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

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

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?

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

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

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

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

Count:How many strawberries?

Circle and calculate: 9+5＝ 14

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

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

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