早教吧作业答案频道 -->其他-->
计算,能用简便算法的要用简便方法计算.3.29-(113+1.29)2700-780÷26×341.25×32×2.5716×45-716÷145.
题目详情
计算,能用简便算法的要用简便方法计算.
3.29-(1
+1.29)
2700-780÷26×34
1.25×32×2.5
×45-
÷
.
3.29-(1
1 |
3 |
2700-780÷26×34
1.25×32×2.5
7 |
16 |
7 |
16 |
1 |
45 |
▼优质解答
答案和解析
(1)3.29-(1
+1.29),
=3.29-1.29-1
,
=2-1
,
=
;
(2)2700-780÷26×34,
=2700-30×34,
=2700-1020,
=1680;
(3)1.25×32×2.5,
=1.25×8×4×2.5,
=(1.25×8)×(4×2.5),
=10×10,
=100;
(4)
×45-
÷
,
=
×45-
×45,
=(
-
)×45,
=0×45,
=0.
1 |
3 |
=3.29-1.29-1
1 |
3 |
=2-1
1 |
3 |
=
2 |
3 |
(2)2700-780÷26×34,
=2700-30×34,
=2700-1020,
=1680;
(3)1.25×32×2.5,
=1.25×8×4×2.5,
=(1.25×8)×(4×2.5),
=10×10,
=100;
(4)
7 |
16 |
7 |
16 |
1 |
45 |
=
7 |
16 |
7 |
16 |
=(
7 |
16 |
7 |
16 |
=0×45,
=0.
看了 计算,能用简便算法的要用简便...的网友还看了以下:
4×35×5×2用简便方法计算 2020-05-15 …
3.54×0.5×2用简便算式计算 2020-05-16 …
(3/1+5/2)x3x5简便计算 2020-06-10 …
0.89×4.8±0.89×5.2的简便计算 2020-06-10 …
巧算:8.7*9.9.((4.8*7.5*8.1)÷((2.4*2.5*2.7).简算::4.巧算 2020-06-11 …
1.6x8.5+2.38简便计算 2020-06-14 …
5.2x19+5.2用简便运算和梯等式怎么写 2020-06-27 …
0.82*48+8.2*5.2的简便方法 2020-07-17 …
4.5*2.01简便计算 2020-11-25 …
40.3-6.3/3.5*2的简便计算 2020-11-26 …