计算,能简算的要简算.(7q+1313)÷131323×1b3×23×31b239÷43÷3439×3q+49×b.3733bb×2b%+13q÷1324.-数学

题目简介

计算,能简算的要简算.(7q+1313)÷131323×1b3×23×31b239÷43÷3439×3q+49×b.3733bb×2b%+13q÷1324.-数学

题目详情

计算,能简算的要简算.
(
7
q
+
13
13
13
13
23×
1b
3
×
2
3
×
3
1b
23
9
÷
4
3
÷
3
4
3
9
×
3
q
+
4
9
×b.373
3bb×2b%+
13
q
÷
13
24
题型:解答题难度:中档来源:不详

答案

(1)(class="stub"7
8
+class="stub"13
1q
)÷class="stub"13
1q

=(class="stub"7
8
+class="stub"13
1q
)×class="stub"1q
13

=class="stub"7
8
×class="stub"1q
13
+class="stub"13
1q
×class="stub"1q
13

=class="stub"14
13
+1,
=2class="stub"1
13


(2)22×class="stub"10
3
×class="stub"2
2
×class="stub"3
10

=(22×class="stub"2
2
)×(class="stub"10
3
×class="stub"3
10
),
=10×1,
=10;

(3)class="stub"22
9
÷class="stub"4
2
÷class="stub"2
4

=class="stub"22
9
×(class="stub"2
4
×class="stub"4
2
),
=class="stub"22
9
×1,
=class="stub"22
9


(4)class="stub"2
9
×class="stub"3
8
+class="stub"4
9
×0.372,
=(class="stub"4
9
+class="stub"4
9
)×0.372,
=1×0.372,
=0.372;

(2)q00×20%+class="stub"13
8
÷class="stub"13
24

=120+3,
=123.

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