脱式计算,能简算的要简算
9.81×0.1+0.5×98.1+0.049×981 2÷[(2﹣1.2)×+0.05]
100﹣32×0.125×0.25 [1﹣(﹣)]×.
直接写出得数
0.9+99×0.9 ×2÷×2 36×25% 1.25×3.2×8 +0.75
( +)× 4.1×10.1 390×2%× 10÷10% +0.6+30%
直接写出得数:
24.06+0.4= = ()×30= ×25= =
÷6= = 12.5×32×2.5= 5﹣= 2.8×25+12×2.5=
直接写出得数.
0.44+++0.6 +2×2﹣2÷ (4﹣2)÷(1+2.4)
48200﹣156×720÷39 (3.06÷0.25+2.76)×0.2 [3÷(3﹣2.4×)]×0.2.
计算能简算的要用简便方法计算.
25×1.25×32×1.7= ; 78﹣4.5+22﹣= ;
5400﹣2940÷28×27= ; 20×(+﹣)= ;
()×5×4= ; 10÷[4﹣(÷+)]= .
试题篮
()