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脱式计算.(能简算的要简算)(1)14+2.25-0.25+7.75(2)3÷27+79+19(3)813+817+513+917(4)1.25×3.2×0.25.
题目详情
脱式计算.(能简算的要简算)
(1)
+2.25-0.25+7.75
(2)3÷27+
+
(3)
+
+
+
(4)1.25×3.2×0.25.
+2.25-0.25+7.75
(2)3÷27+
+
(3)
+
+
+
(4)1.25×3.2×0.25.
1 4 1 1 4 4
+
(3)
+
+
+
(4)1.25×3.2×0.25.
7 9 7 7 9 9
(3)
+
+
+
(4)1.25×3.2×0.25.
1 9 1 1 9 9
+
+
+
(4)1.25×3.2×0.25.
8 13 8 8 13 13
+
+
(4)1.25×3.2×0.25.
8 17 8 8 17 17
+
(4)1.25×3.2×0.25.
5 13 5 5 13 13
(4)1.25×3.2×0.25.
9 17 9 9 17 17
(1)
1 |
4 |
(2)3÷27+
7 |
9 |
1 |
9 |
(3)
8 |
13 |
8 |
17 |
5 |
13 |
9 |
17 |
(4)1.25×3.2×0.25.
1 |
4 |
(2)3÷27+
7 |
9 |
1 |
9 |
(3)
8 |
13 |
8 |
17 |
5 |
13 |
9 |
17 |
(4)1.25×3.2×0.25.
1 |
4 |
7 |
9 |
1 |
9 |
(3)
8 |
13 |
8 |
17 |
5 |
13 |
9 |
17 |
(4)1.25×3.2×0.25.
7 |
9 |
1 |
9 |
(3)
8 |
13 |
8 |
17 |
5 |
13 |
9 |
17 |
(4)1.25×3.2×0.25.
1 |
9 |
8 |
13 |
8 |
17 |
5 |
13 |
9 |
17 |
(4)1.25×3.2×0.25.
8 |
13 |
8 |
17 |
5 |
13 |
9 |
17 |
(4)1.25×3.2×0.25.
8 |
17 |
5 |
13 |
9 |
17 |
(4)1.25×3.2×0.25.
5 |
13 |
9 |
17 |
(4)1.25×3.2×0.25.
9 |
17 |
▼优质解答
答案和解析
(1)14+2.25-0.25+7.75 =0.25+2.25-0.25+7.75 =(0.25-0.25)+(2.25+7.75)=0+10=10(2)3÷27+79+19=19+79+19=1(3)813+817+513+917 =(813+513)+(817+917 )=1+1=2(4)1.25×3.2×0.25=1.25×0.8×4...
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