脱式计算.
0.25×1.25×4×82.125×+1.875÷4(2.5﹣0.125)×0.8+6.24
2÷﹣
÷22.25×4.8+77.5×0.4836×(
+
)
怎样算简便就怎样算.
12.7×99+12.7 25×32×0.125(7.6×15+2.4×5)÷126 16.8﹣2.25﹣4.63.
用简便方法计算.
25×(100+4)×20﹣
×3﹣
2008×
.
怎样算简便就怎样算.
3280÷16+60018.75﹣6.2﹣3.8 3.75+4.5÷0.18×0.2525×1.25×32.
脱式计算(能简算的要简算).
①0.125×0.25×8×4 ②6.6×12+8×6.6
③×
+
÷
④8.05﹣0.75﹣
.