早教吧作业答案频道 -->数学-->
简便运算.1.2-0.5×1.8÷0.9134-56+14-16(25+16-215)×3016÷[1÷(35-310)]602+597+601+603+599+596+604.
题目详情
简便运算.
1.2-0.5×1.8÷0.9
1
-
+
-
(
+
-
)×30
÷[1÷(
-
)]
602+597+601+603+599+596+604.
1.2-0.5×1.8÷0.9
1
3 |
4 |
5 |
6 |
1 |
4 |
1 |
6 |
(
2 |
5 |
1 |
6 |
2 |
15 |
1 |
6 |
3 |
5 |
3 |
10 |
602+597+601+603+599+596+604.
▼优质解答
答案和解析
①1.2-0.5×1.8÷0.9
=1.2-0.5×(1.8÷0.9)
=1.2-0.5×2
=1.2-1
=0.2
②1
-
+
-
=(1
+
)-(
+
)
=2-1
=1
③(
+
-
)×30
=
×30+
×30-
×30
=12+5-4
=13
④
÷[1÷(
-
)]
=
÷(1÷
)
=
÷
=
×
=
⑤602+597+601+603+599+596+604
=602+(597+603)+(601+599)+(596+604)
=602+1200+1200+1200
=4202
=1.2-0.5×(1.8÷0.9)
=1.2-0.5×2
=1.2-1
=0.2
②1
3 |
4 |
5 |
6 |
1 |
4 |
1 |
6 |
=(1
3 |
4 |
1 |
4 |
5 |
6 |
1 |
6 |
=2-1
=1
③(
2 |
5 |
1 |
6 |
2 |
15 |
=
2 |
5 |
1 |
6 |
2 |
15 |
=12+5-4
=13
④
1 |
6 |
3 |
5 |
3 |
10 |
=
1 |
6 |
3 |
10 |
=
1 |
6 |
10 |
3 |
=
1 |
6 |
3 |
10 |
=
1 |
20 |
⑤602+597+601+603+599+596+604
=602+(597+603)+(601+599)+(596+604)
=602+1200+1200+1200
=4202
看了 简便运算.1.2-0.5×1...的网友还看了以下:
0.25×5×4=0.25×4×5运用了乘法律. 2020-05-13 …
计算:0.064∧-1/3-(-1/8)∧0+7∧log72+0.25∧5/2×0.5∧-4急最好 2020-05-14 …
计算下面各题,能简算的要简算,并写出简算过程.(1)479+58+321(2)13×8×125×2 2020-06-13 …
直接写出得数(1)35÷310=(2)4.22+0.4+0.38=(3)6.55-1.5=(4)7 2020-07-09 …
4.3+5.8=3.6+6.4=0.74-0.34=0.9-0.25=5×4=0.21×3=0.6 2020-07-13 …
用递等式计算(能简算的请简算).①328-195÷13+45②10.25+5.89+0.75+4. 2020-07-18 …
不计算,直接在横线里填上>、<或=.0.175÷0.25×40.175÷(0.25×4)0.448 2020-07-18 …
口算.12×40=18×50=16×50=80×50=80×25=54×11=15×40=13×7 2020-07-19 …
直接写出得数:3.37+0.63=+=1.25×3×8=436-297=99×3.4=-25%=5 2020-07-21 …
1、选择(1)下列各式可以用乘法分配律进行简算的算式是().A:1.25×5.6×0.8B:0.84 2020-12-09 …