7.3×8.26+1.74×7.32.07×8÷1.2
4×88×0.252.38×4.1+5.8×2.38+0.238.
计算,能用简算的要简算.
0.85×101
5.29÷2.3﹣0.1×01
0.28÷35
8﹣4.68÷4.5×(0.25+0.5)
2.5×1.25×32
25.7×3.29+6.71×25.7.
用递等式计算,能简算的要简算.
1÷﹙18.5﹣4.5×3﹚÷
﹣
×
×
×40.
计算下面各题(能简算的要简算).
①4×0.8×2.5×12.5 ②÷[1﹣(
+
)]③(2.8+3.85÷3.5)×4.6
④6.5×1.83+0.17×6.5⑤(+
)×8+
⑥
÷[
×(0.4+
)].
0.89×0.48+0.89×0.520.25×13.7×0.44.2×101
3.6×992.5×32×1.250.125×88
56.5×99+56.5(1.25﹣0.125)×845÷0.09÷0.5
17.8÷(1.78×4)