六上数学简算题 计算下面各题,能简算的要简算.59+311+49+811 375+450÷18×25 12×(14+16?13) 49÷[56?(16+13)] 4.05
计算下面各题,能简算的要简算.59+311+49+811 375+450÷18×25 12×(14+16?13) 49÷[56?(16+13)] 4.05
计算下面各题,能简算的要简算.59+311+49+811 375+450÷18×25 12×(14+16?13) 49÷[56?(16+13)] 4.05
(1)
5 9+
3 11+
4 9+
8 11=(
5 9+
4 9)+(
3 11+
8 11)
=1+1
=2
(2)375+450÷18×25
=375+25×25
=375+625
=1000
(3)12×(
1 4+
1 6-
1 3)
=12×
+12×
1 6-12×
1 3=3+2-4
=1
(4)
4 9÷[
5 6-(
1 6+
1 3)]
=
÷[
5 6-
1 2]
=
÷
1 3=
4 9×3
=
(5)4.05-2.8-0.7
=4.05-(2.8+0.7)
=4.05-3.5
=0.55
(6)8.5-(5.6+4.8)÷1.3
=8.5-10.4÷1.3
=8.5-8
=0.5
计算下面各题.(能简算的要简算)(16+12)÷65 57×29+27÷92 518÷[56?(16+13)] 14÷[(1?14)×65]
(1)(
1 6+
1 2)÷
6 5=
2 3×
5 6=
5 9;
(2)
5 7×
2 9+
2 7÷
9 2=
5 7×
2 9+
2 7×
2 9=(
5 7+
2 7)×
2 9=1×
2 9=
2 9;
(3)
5 18÷[
5 6-(
1 6+
1 3)]
=
÷[
5 6-
1 2]
=
×3
=
;
(4)
1 4÷[(1-
1 4)×
计算下面各题.能简算的要简算. 14÷(3-513-813) 512×13+1112×5 375+450÷18×25 1011+6
(1)
1 4÷(3-
5 13-
8 13),
=
÷[3-(
5 13+
8 13)],
=
÷[3-1],
=
÷2,
=
;
(2)
5 12×13+
11 12×5,
=
×13+
5 12×11,
=
×(13+11),
=
×24,
=10;
(3)375+450÷18×25,
=375+25×25,
=375+625,
=1000;
(4)
10 11+
6 11÷(4÷
2 3),
=
+
6 11÷6,
=
+
1 11,
=1.
计算下面各题,能简算的要简算.103×5×115 (914 56×513+56×813 (12+13+16)×12
(1)
10 3×5×
1 15,
=
×(5×
1 15),
=
×
1 3,
=
;
(2)(
9 14?
2 7)×28,
=
×28?
2 7×28,
=18-8,
=10;
(3)
5 6×
5 13+
5 6×
8 13,
=
×(
5 13+
8 13),
=
×1,
=
;
(4)(
1 2+
1 3+
1 6)×12,
=
×12+
1 3×12+
1 6×12,
=6+4+2,
=12.
计算下面各题,能简算的要简算:(512+13)×12+59×0.75+34×49(27+40%)×76-1569.4-5.185÷1
(1)(
5 12+
1 3)×12+
5 9×0.75+
3 4×
4 9,
=
×12+
1 3×12+
5 9×0.75+0.75×
4 9,
=5+4+(
+
4 9)×0.75,
=9+0.75,
=9.75;
(2)(
2 7+40%)×
7 6-
1 5,
=(
+
2 5)×
7 6-
1 5,
=
×
7 6+
2 5×
7 6-
1 5,
=
+
7 15-
1 5,
=
;
(3)69.4-5.185÷1.7-13.9×0.5,
=69.4-3.05-6.95,
=69.4-(3.05+6.95),
=69.4-10,
=59.4.
计算下面各题,能简算的要简算.127-(13÷715+811)79+6.28+29-4.28920÷[12×(25+45)].
(1)
12 7-(
1 3÷
7 15+
8 11)
=
-(
1 3×
15 7+
8 11)
=
-(
5 7+
8 11)
=
-
5 7-
8 11=1-
8 11=
3 11;
(2)
7 9+6.28+
2 9-4.28
=(
+
2 9)+(6.28-4.28)
=1+2
=3;
(3)
9 20÷[
1 2×(
2 5+
4 5)]
=
÷[
1 2×
6 5]
=
÷
3 5=
9 20×
5 3=
3 4.
计算下面各题.(1)41×1740 (2)12×(14+16-13) (3)375+450÷18×25 (4)(45+14)÷73 (
(1)41×
17 40,
=(40+1)×
,
=40×
![六上数学简算题 计算下面各题,能简算的要简算.59+311+49+811 375+450÷18×25 12×(14+16?13) 49÷[56?(16+13)] 4.05](http://img.zhputi.com/uploads/20e2/20e267f08aab61931f55709d35394c79127584.jpg)
17 40
+1×
17 40,
=17+
,
=17
;
(2)12×(
1 4+
1 6-
1 3),
=12×
+12×
1 6-12×
1 3,
=3+2-4,
=1;
(3)375+450÷18×25,
=375+450÷18×25,
=375+25×25,
=375+625,
=1000;
(4)(
4 5+
1 4)÷
7 3,
=(
+
1 4)×
3 7,
=(
+
5 20)×
3 7,
=
×
3 7,
=
;
(5)8-6÷2.4,
=8-2.5,
=5.5;
(6)(6)1.2×1.2+8.8×1.2,
=1.2×(1.2+8.8),
=1.2×10,
=12.
计算下列各题,能简算的要简算 14÷(23?16÷13) 59×10+59÷17+59 99%+91×(213?17
(1)
1 4÷(
2 3-
1 6÷
1 3)
=
÷(
2 3-
1 6×3)
=
÷(
2 3-
1 2)
=
÷
1 6=
1 4×6
=
;
(2)
5 9×10+
5 9÷
1 7+
5 9=
5 9×10+
5 9×7+
5 9=
5 9×(10+7+1)
=
×18
=10;
(3)99%+91×(
2 13-
1 7)
=0.99+91×
=0.99+1
=1.99.
计算下面各题,能简算的要简算.(712+38-56)÷12438×56-13×38
(1)(
7 12+
3 8-
5 6)÷
1 24,
=(
+
3 8-
5 6)×24,
=
×24+
3 8×24-
5 6×24,
=14+9-20,
=23-20,
=3;
(2)
3 8×
5 6-
1 3×
3 8,
=
×(
5 6-
1 3),
=
×
1 2,
=
.
计算下面各题(能简算的要简算). 706×99+706 25×13×25×310 1.6+3.1+5.4+6.9 (12-14
(1)706×99+706,
=706×(99+1),
=706×100,
=70600;
(2)25×
1 3×
2 5×
3 10,
=(25×
)×(
3 10×
1 3),
=10×
,
=1;
(3)1.6+3.1+5.4+6.9,
=(1.6+5.4)+(6.9+3.1),
=7+10,
=17;
(4)(
1 2-
1 4)×
2 5,
=
×
2 5,
=
.
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