一年级数学上册连加连减课件VIP专享VIP免费

1. 口算8+2= 1010-3= 78-7= 16+4=100+9= 95+5= 1010-8=22+5=73+7=1010-2= 84+3= 77+1= 8 ?( ) + ( ) = ( ) 325 8 只？8 - 3 = 5 5+2+1=877 9 只 ？9 4--2=35 4 + 3 + ( ) = ( )?18 10 - ( ) - ( ) = ( )325 10+3+5=2? 10 - 3 - 3 = 4？ 看谁算得又对又快100821910697+2+1=9-6-3=3+3+2=10-6-2=10-4-5=8+1+0=4+2+4=9-0-3=0+2+7=10-5-2= 3