计算下面各题,能简算的要简算.①0.45+0.45÷0.9×1.8②9511-534-2.25③25×104④0.625×4.3+58×4.7+62
计算下面各题,能简算的要简算.①0.45+0.45÷0.9×1.8②9511-534-2.25③25×104④0.625×4.3+58×4.7+62.5%⑤(110+16...
计算下面各题,能简算的要简算.①0.45+0.45÷0.9×1.8②9511-534-2.25③25×104④0.625×4.3+58×4.7+62.5%⑤(110+16)×10×6⑥38×20-38×3-38.
展开
①0.45+0.45÷0.9×1.8,
=0.45+0.5×1.8,
=0.45+0.9,
=1.35;
②9
-5
-2.25,
=9
?(5.75+2.25),
=9
-8,
=1
;
③25×104,
=25×100+25×4,
=2500+100,
=2600;
④0.625×4.3+
×4.7+62.5%,
=0.625×(4.3+4.7+1),
=0.625×10,
=6.25;
⑤(
+
)×10×6,
=
×10×6+×10×6,
=6+10,
=16;
⑥
×20-
×3-
,
=
×(20-3-1),
=
×16,
=6.
收起
为你推荐: