320+102的简便运算脱式

3.2*102=3.2*(100+2)=320+6.4=326.4

69x102=69x(100+2)=69x100+69x2=6900+138=7038

32*102=32*100+32*2=3200+64=3264

=(100+2)*(100-2)=100的平方-2的平方=10000-4=9996

:34.5*102=34.5*(100+2)=34.5*100+34.5*2=3450+69=3519

1034+78+320+102=1034+(78+22)+(320+80)=1034+100+400=1534 亲,我的回答你满意吗?如果满意就请右上角采纳,如果不满意,你可以继续问我哦

384一102用简便方法计算还要用脱式计算=384-100-2=284-2=282

=100+3+78+320+100+2=100+100+80+320+3=603

200÷20*30 = = 85+14*20 = = 95÷(65-56) = = 120+36*4 = = 32*97 = = 85*91÷7 = = 67*(2*3) = = 43+943÷6 = = 91*3+149 = = 93*6+124 = = 324÷7+635 = = 44*30÷3 = = 221+22*4 = = 481*6*0 = = 384*6*7 = = 40÷2*174 = = 147+72÷8 = = 9*(9.

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