计算,能简便的用简便方法算.1650-480÷16×150.4×7.6×25×1000(34+25)×2079÷135+29×513.-六年级数学

题目简介

计算,能简便的用简便方法算.1650-480÷16×150.4×7.6×25×1000(34+25)×2079÷135+29×513.-六年级数学

题目详情

计算,能简便的用简便方法算.
1650-480÷16×150.4×7.6×25×1000
3
4
+
2
5
)×20
7
9
÷
13
5
+
2
9
×
5
13
题型:解答题难度:中档来源:不详

答案

(1)1650-480÷16×15,
=1650-30×15,
=1650-450,
=1200;

(2)0.4×7.6×25×1000,
=(0.4×25)×(7.6×1000),
=10×7600,
=76000;

(3)(class="stub"3
4
+class="stub"2
5
)×20,.
=class="stub"3
4
×20+class="stub"2
5
×20,
=15+8,
=23;

(4)class="stub"7
9
÷class="stub"13
5
+class="stub"2
9
×class="stub"5
13

=class="stub"7
9
×class="stub"5
13
+class="stub"2
9
×class="stub"5
13

=(class="stub"7
9
+class="stub"2
9
)×class="stub"5
13

=1×class="stub"5
13

=class="stub"5
13

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