五上简便计算题大全 下面各题能简便计算的写出简算过程.①21.35-3.25-16.75②33.02-(148.4-90.85)÷
下面各题能简便计算的写出简算过程.①21.35-3.25-16.75②33.02-(148.4-90.85)÷
下面各题能简便计算的写出简算过程.①21.35-3.25-16.75②33.02-(148.4-90.85)÷, 下面各题能简便计算的写出简算过程.①21.35-3.25-16.75 &...
据分析解答如下:(1)21.35-3.25-16.75,
=21.35-(3.25+16.75),
=21.35-20,
=1.35;

(2)33.02-(148.4-90.85)÷2.5,
=33.02-57.55÷2.5,
=33.02-23.02,
=10;
(3)32×2.5×0.125,
=4×8×2.5×0.125,
=(4×2.5)×(8×0.125),
=10×1,
=10;
(4)18.1+(3-0.299÷0.23)×1,
=18.1+(3-1.3)×1,
=18.1+1.7×1,
=18.1+1.7,
=19.8.
33.02-(148.4-90.85)2.5用简便计算
=33.02-57.55/2.5
=33.02-23.02
=10
33.02-(148.4-90.85)÷2.5 简算
33.02-(148.4-90.85)÷2.5
=33.02-57.55÷2.5
=33.02-(57.55X4)÷(2.5X4)
=33.02-23.02
=10
计算下面各题,怎样简便就怎样算. 33.02-(148.4-90.85)÷2.5 423×0.6+0.6÷314 (1
(1)33.02-(148.4-90.85)÷2.5,
=33.02-57.55÷2.5,
=33.02-23.02,
=10;
(2)4
2 3×0.6+0.6÷
3 14,
=4
×0.6+0.6×
14 3,
=(4
+
14 3)×0.6,
=
×0.6,
=5.6;
(3)(1÷
2 7+
2 7÷1)÷5.1,
=(
+
2 7)÷5.1,
=
÷5.1,
=
;
(4)218.1+(3
1 5-0.299÷0.23)×1
1 2,
=218.1+(3
-1.3)×1
1 2,
=218.1+1.9×1
,
=218.1+2.85,
=220.95.
脱式计算下面各题.(1)2700×(506-499)÷300(2)33.02-(148.4-90.85)÷2.5(3)(1÷1-1)
(1)2700×(506-499)÷300,=2700×7÷300,
=2700÷300×7,
=9×7,
=63;(2)33.02-(148.4-90.85)÷2.5,
=33.02-57.55÷2.5,
=33.02-23.02,
=10;
(3)(1÷1-1)÷2013,
=(1-1)÷2013,
=0;
(4)18.1+(3-0.299÷0.23)×100,
=18.1+(3-1.3)×100,
=18.1+1.7×100,
=18.1+170,
=188.1.
简便计算:(写出简算过程)
这个很简单,可以看做一个等差数列的求和。
即20+(19-18)+(17-16)+……+1=20+9*1+1=30
脱式计算.①2700×(506-499)÷900②33.02-(148.4-90.85)÷2
①2700×(506-499)÷900
=2700×7÷900,
=2700÷900×7,
=3×7,
=21;
②33.02-(148.4-90.85)÷2.5
=33.02-57.55÷2.5,
=33.02-23.02,
=10;
③(1÷1-1)÷5.1
=(1-1)÷5.1,
=0÷5.1,
=0;
④18.1+(3-0.299÷0.23)×1
=18.1+(3-1.3)×1,
=18.1+1.7×1,
=18.1+1.7,
=19.8.