能简算的要简算
1.2﹣0.5×1.8÷0.98×7×1.25×8.8+1.2×
+60% [15×(50%+
)]÷
.
用递等式计算
(1)×
÷
(2)
÷
×10(3)
÷
×12(4)(
+
﹣
)×36.
13×4÷13×4=+
= 28﹣
﹣
= (
+
﹣
)×30=
﹣
= 100÷0.01= 2÷1+2×
=
=
×
×
=6.54﹣2.8﹣1.2=
计算,能简算的要简算:
(1)1÷4÷8÷0.25÷12.5(2)9.75﹣5.42﹣(0.25+2.58)
(3)8×2.7+6.2×1.4+3.5×8.6(4)[
+(20﹣4.7)×6
]÷102.2.
能简算的要简算:
(1)432×99﹣568(2)14÷4﹣(3+5÷9)
(3)51×68×78÷(17×34×13)(4)1×(2
﹣0.75)+15
÷
.