用递等式计算!0.78+8.4÷4.2×3.6 10.33÷(0.46-0.36)×3.4 (9.6-1.69÷1.3)×40 4.1+(10.1-0.9)÷2

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用递等式计算!0.78+8.4÷4.2×3.6 10.33÷(0.46-0.36)×3.4 (9.6-1.69÷1.3)×40 4.1+(10.1-0.9)÷2
用递等式计算!
0.78+8.4÷4.2×3.6 10.33÷(0.46-0.36)×3.4 (9.6-1.69÷1.3)×40
4.1+(10.1-0.9)÷2

用递等式计算!0.78+8.4÷4.2×3.6 10.33÷(0.46-0.36)×3.4 (9.6-1.69÷1.3)×40 4.1+(10.1-0.9)÷2
首先要注意,加减乘除是有运算顺序的,乘除要先算,再计算加减.如果式子里有括号,要优先计算括号里的部分.到了括号里,还是要注意乘除先算,加减后算.
详细过程如下:
0.78+8.4÷4.2×3.6
=0.78+2x3.6
=0.78+7.2
=7.98
10.33÷(0.46-0.36)×3.4
=10.33÷0.1×3.4
=103.3×3.4
=351.22
(9.6-1.69÷1.3)×40
=(9.6-1.3)×40
=8.3×40
=332
4.1+(10.1-0.9)÷2
=4.1+9.2÷2
=4.1+4.6
=8.7
你一定能看懂的.

0.78+8.4÷4.2×3.6
=0.78+2x3.6
=0.78+7.2
=7.98
10.33÷(0.46-0.36)×3.4
=10.33÷0.1×3.4
=103.3×3.4
(9.6-1.69÷1.3)×40
=(9.6-1.3)×40
=8.3×40
=332
4.1+(10.1-0.9)÷2
=4.1+9.2÷2
=4.1+4.6
=8.7

7.98
341.02
332
8.7