巧算 46+32+54 546+785-146 0.7+3.9+4.3+6.1 25*49*4 8* (36*125) 8*4*12.5*0.25 2.7*4.8+2.7*5.2

问题描述:

巧算 46+32+54 546+785-146 0.7+3.9+4.3+6.1 25*49*4 8* (36*125) 8*4*12.5*0.25 2.7*4.8+2.7*5.2
905*99+905
13*10.2

46+32+54=54+46+32=100+32=132 546+785-146=546-146+785=400+785=1185 0.7+3.9+4.3+6.1=4.3+0.7+3.9+6.1=5+10=15 25*49*4=25*4*49=100*49=4900 8* (36*125)=8*125*36=1000*36=36000 8*4*12.5*0.25=12.5*8*4*0.25=1...嘻嘻 其实我学语文英语很好 数学有点满