1. Three-digit number addition

2. review1
Look at the picture to write the number：
356
247

3. review2
fill in the blanks：
124=（ ）+（ ）+（ ）
356=（ ）+（ ）+（ ）
603=（ ）+（ ）+（ ）
540=（ ）+（ ）+（ ）
100 20 4
300 50 6
600 3
500 40

4. Stand A:356，
Stand B:247，
How many people are there total in stand A and B ?

5. = ?
How to do
three-digit number addition?

6. 603
603
500 90 13

7. 603
603
500 90 13

8. Use the number line
603
603

9. Use the number line
603
603

10. Compare：
603
603
U add U
H add H
T add T
T add T
H add H
U add U
603
603
Add H
Add U
Add T
Add T
Add U
Add H
603
603

11. 1 Look at the picture and fill the blanks、
234
342
234＋342=
200＋（ ）=
30＋（ ）=
（ ）＋2=

12. =346＋( )＋( )＋ ( ) = ( )＋( )＋ ( ) = ( )＋ ( ) = ( )
2. Use the number line and
fill the blanks
346
546
＋200
＋50 ＋5
596
( ) ★
346＋255
=346＋( )＋( )＋ ( )
= ( )＋( )＋ ( )
= ( )＋ ( )
= ( )

13. 3. use your favorite way to do it、

14. choose two toys,how much is the total?
364 RMB
230 RMB
109RMB
237RMB
186RMB