用递等式计算,能简算的要简算.(1)46×8-120÷15 ...
用递等式计算,能简算的要简算.(1)46×8-120÷15(2)34+2917+14+3817(3)(12.5×8-40)÷0.6(4)23+(45?23)×53(5)3...
用递等式计算,能简算的要简算.(1)46×8-120÷15 (2)34+2917+14+3817(3)(12.5×8-40)÷0.6 (4)23+(45?23)×53(5)3.4×2.77+0.23×3.4 (6)(512+19+38)×72.
展开
小鱼酀畝
推荐于2016-11-13
·
超过65用户采纳过TA的回答
关注
(1)46×8-120÷15,
=368-8,
=360;
(2)
+2++3,
=(
+)+(2
+
3),
=1+6,
=7;
(3)(12.5×8-40)÷0.6,
=(100-40)÷0.6,
=60÷0.6,
=100;
(4)
+(?)×,
=
+
×
,
=
+
,
=
;
(5)3.4×2.77+0.23×3.4
=(2.77+0.23)×3.4,
=3×3.4,
=10.2;
(6)(
+
+
)×72
=
×72+
×72+
×72,
=30+8+27,
=65.
收起
为你推荐: