早教吧作业答案频道 -->数学-->
混合运算(你能用简便方法计算吗?)5-(4.19-2.83)1.39+0.72+0.61+3.288-3.7-6.38.28-(1.28+3.7)
题目详情
混合运算 (你能用简便方法计算吗?)
5-(4.19-2.83) | 1.39+0.72+0.61+3.28 | 8-3.7-6.3 | 8.28-(1.28+3.7) |
▼优质解答
答案和解析
(1)5-(4.19-2.83),
=5-1.36,
=3.64;
(2)1.39+0.72+0.61+3.28,
=(1.39+0.61)+(0.72+3.28),
=2+4,
=6;
(3)8-3.7-6.3,
=8-(3.7+6.3),
=8-10,
=-2;
(4)8.28-(1.28+3.7),
=8.28-1.28-3.7,
=7-3.7,
=3.3.
=5-1.36,
=3.64;
(2)1.39+0.72+0.61+3.28,
=(1.39+0.61)+(0.72+3.28),
=2+4,
=6;
(3)8-3.7-6.3,
=8-(3.7+6.3),
=8-10,
=-2;
(4)8.28-(1.28+3.7),
=8.28-1.28-3.7,
=7-3.7,
=3.3.
看了 混合运算(你能用简便方法计算...的网友还看了以下:
24÷4=7+63=9×4=36÷6=9×7=56÷8=28+6=7×5=36+4=30÷5=63 2020-04-07 …
从n组数据中取出最少的组,满足至少有1个元素在新的集合中出现,用lingo,或者其他方法数据在这里 2020-05-16 …
货梯2:1绕法,16mm钢丝绳6根,轿厢和小车(车计入轿厢)重4T,货物重2.5T,货梯只有两个位 2020-05-17 …
(1/2-1/6)×5+1/4×4/511/28×8/33+13/14×25/264(1/2-1/ 2020-05-23 …
混合运算(你能用简便方法计算吗?)5-(4.19-2.83)1.39+0.72+0.61+3.28 2020-06-27 …
乘法的意义—7的4倍和4的7倍有什么区别7×4=28能不能说是4的7倍是28 2020-07-04 …
28个战士要过河只有一条小船每次只能剩4人,问需要渡多少次才能把28个人全部渡过河.不能用乘法或除 2020-07-17 …
我用我喜欢的方法计算.15.73-(6.25+3.73)70.9-1.25-1.752.54+9. 2020-07-17 …
7.17+0.28+8.72=7.17+(0.28+8.72)这是运用了()A.加法交换律B.加法 2020-07-31 …
3x7=21,2x7+7=21,4x7-7=11,6x7=42,5x7+7=42,7x7-7=42, 2020-10-31 …