390×0.02=7÷1.4=58÷512=0.9+99×0.9=1.79×4×0.25=(45-23)÷130=5÷57-57×15=-数学

题目简介

390×0.02=7÷1.4=58÷512=0.9+99×0.9=1.79×4×0.25=(45-23)÷130=5÷57-57×15=-数学

题目详情

390×0.02=7÷1.4=
5
8
÷
5
12
=
0.9+99×0.9=1.79×4×0.25=(
4
5
-
2
3
1
30
=
5÷
5
7
-
5
7
×
1
5
=
题型:解答题难度:中档来源:不详

答案

(1)390×0.02=7.8; (2)7÷1.4=5;(3)class="stub"5
8
÷class="stub"5
12
=1.5;
(4)0.9+99×0.9=90;(5)1.79×4×0.25=1.79; (6)(class="stub"4
5
-class="stub"2
3
)÷class="stub"1
30
=4;
(7)5÷class="stub"5
7
-class="stub"5
7
×class="stub"1
5
=6class="stub"6
7

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