脱式计算(能简算的要简算.)
7.8+4.56+2.2 0.75×6.4﹣0.75×5.4
78÷0.25÷0.4 9.9×57.
直接写出得数
(1)
=(2)4.22+0.4+0.38=(3)6.55﹣1.5=(4)
×
=(5)0.72÷0.8=
(6)1+
=(7)12.5×6×8=(8)33=(9)75×25%+25×25%= (10)5×(
)×8=
直接写出得数
(1)547+765﹣147=(2)9.3÷0.03=(3)9﹣
﹣
=(4)
×
÷5=(5)(a﹣3)×0=
(6)12×(
﹣
)=(7)
÷2÷
=(8)
=(9)4.8×2.7+5.2×2.7= (10)
÷(
+
)×8=
(1)240×50%=
(2)
=
(3)
=
(4)
=
(5)
=
(6)
=
(7)1.25×99.99×0.4×8×2.5=
(8)
=
能简算的要简算:
(
+
﹣10%)×21
×53%+60%×0.47 2
﹣(20%+
)×4.5.
脱式计算.
8.82×15﹣10015.8﹣
+14.2﹣
21.6﹣0.8×4÷0.8×4
3
×3.7+3.6+5.3×3
2.5×4.4(1.5+2
)÷3.75﹣
.