64×2.5×0.125 3×0.8+3×2.2 3.76÷0.4÷2.5(14.21+3.5)÷7 4.66×0.28+4.66×0.82﹣4.66 2.4+57.6÷36.
计算下面各题.389+162+1211 3865﹣1487﹣5139300﹣(92+67×103) 105×16﹣1089÷99.
请你快速算出每束气球上三个数连乘的积.4×34×55×12×1117×25×4.
简便运算我也行.2.06×101 0.25×125×0.32 1.25×8.8 31.8×2.5+31.8×7.5.
怎样算简便怎样算.(+)×32 17×.
怎样算简便怎样算.×51 ×18.