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简算.1.02÷1.25=4.6×910+4.4÷119+(1-0.1)=5.87-(3.87-0.96)=101÷10101-11110=(229+323)×29×23=
题目详情
简算.
1.02÷1.25=
4.6×
+4.4÷1
+(1-0.1)=
5.87-(3.87-0.96)=
101÷
-11
=
(
+
)×29×23=
1.02÷1.25=
4.6×
9 |
10 |
1 |
9 |
5.87-(3.87-0.96)=
101÷
10 |
101 |
1 |
10 |
(
2 |
29 |
3 |
23 |
▼优质解答
答案和解析
(1)1.02÷1.25
=1.02÷1.25÷0.8×0.8
=1.02÷(1.25×0.8)×0.8
=1.02÷1×0.8
=1.02×0.8
=0.816;
(2)4.6×
+4.4÷1
+(1-0.1)
=4.6×
+4.4×
+
=(4.6+4.4+1)×
=10×
=9;
(3)5.87-(3.87-0.96)
=5.87-3.87+0.96
=2+0.96
=2.96;
(4)101÷
-11
=101×10.1-11.1
=101×10.1-10.1-1
=(101-1)×10.1-1
=100×10.1-1
=1010-1
=1009;
(5)(
+
)×29×23
=
×29×23+
×29×23
=2×23+3×29
=46+87
=133.
=1.02÷1.25÷0.8×0.8
=1.02÷(1.25×0.8)×0.8
=1.02÷1×0.8
=1.02×0.8
=0.816;
(2)4.6×
9 |
10 |
1 |
9 |
=4.6×
9 |
10 |
9 |
10 |
9 |
10 |
=(4.6+4.4+1)×
9 |
10 |
=10×
9 |
10 |
=9;
(3)5.87-(3.87-0.96)
=5.87-3.87+0.96
=2+0.96
=2.96;
(4)101÷
10 |
101 |
1 |
10 |
=101×10.1-11.1
=101×10.1-10.1-1
=(101-1)×10.1-1
=100×10.1-1
=1010-1
=1009;
(5)(
2 |
29 |
3 |
23 |
=
2 |
29 |
3 |
23 |
=2×23+3×29
=46+87
=133.
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