Three-digit number addition

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Presentation transcript:

Three-digit number addition

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

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

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

356 + 247 = ? How to do three-digit number addition?

603 603 500 90 13

603 603 500 90 13

Use the number line 603 603

Use the number line 603 603

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

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

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

3. use your favorite way to do it、 728+276

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