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脱式计算(能简便的要简算)(1)580+522÷29×15;(2)14.87-3.34-5.66;(3)34+14÷(1-45);(4)1.25×3.2×2.5;(5)42×(13+57-214);(6)75×[1÷(23-15)].
题目详情
脱式计算(能简便的要简算)
(1)580+522÷29×15;
(2)14.87-3.34-5.66;
(3)
+
÷(1-
);
(4)1.25×3.2×2.5;
(5)42×(
+
-
);
(6)
×[1÷(
-
)].
+
÷(1-
);
(4)1.25×3.2×2.5;
(5)42×(
+
-
);
(6)
×[1÷(
-
)].
3 3 4 4
÷(1-
);
(4)1.25×3.2×2.5;
(5)42×(
+
-
);
(6)
×[1÷(
-
)].
1 1 4 4
);
(4)1.25×3.2×2.5;
(5)42×(
+
-
);
(6)
×[1÷(
-
)].
4 4 5 5
+
-
);
(6)
×[1÷(
-
)].
1 1 3 3
-
);
(6)
×[1÷(
-
)].
5 5 7 7
);
(6)
×[1÷(
-
)].
2 2 14 14
×[1÷(
-
)].
7 7 5 5
-
)].
2 2 3 3
)].
1 1 5 5
(1)580+522÷29×15;
(2)14.87-3.34-5.66;
(3)
3 |
4 |
1 |
4 |
4 |
5 |
(4)1.25×3.2×2.5;
(5)42×(
1 |
3 |
5 |
7 |
2 |
14 |
(6)
7 |
5 |
2 |
3 |
1 |
5 |
3 |
4 |
1 |
4 |
4 |
5 |
(4)1.25×3.2×2.5;
(5)42×(
1 |
3 |
5 |
7 |
2 |
14 |
(6)
7 |
5 |
2 |
3 |
1 |
5 |
3 |
4 |
1 |
4 |
4 |
5 |
(4)1.25×3.2×2.5;
(5)42×(
1 |
3 |
5 |
7 |
2 |
14 |
(6)
7 |
5 |
2 |
3 |
1 |
5 |
1 |
4 |
4 |
5 |
(4)1.25×3.2×2.5;
(5)42×(
1 |
3 |
5 |
7 |
2 |
14 |
(6)
7 |
5 |
2 |
3 |
1 |
5 |
4 |
5 |
1 |
3 |
5 |
7 |
2 |
14 |
(6)
7 |
5 |
2 |
3 |
1 |
5 |
1 |
3 |
5 |
7 |
2 |
14 |
(6)
7 |
5 |
2 |
3 |
1 |
5 |
5 |
7 |
2 |
14 |
(6)
7 |
5 |
2 |
3 |
1 |
5 |
2 |
14 |
7 |
5 |
2 |
3 |
1 |
5 |
7 |
5 |
2 |
3 |
1 |
5 |
2 |
3 |
1 |
5 |
1 |
5 |
▼优质解答
答案和解析
(1)580+522÷29×15
=580+18×15
=580+270
=850;
(2)14.87-3.34-5.66
=14.87-(3.34+5.66)
=14.87-9
=5.87;
(3)
+
÷(1-
)
=
+
÷
=
+
=2;
(4)1.25×3.2×2.5
=1.25×(8×0.4)×2.5
=(1.25×8)×(0.4×2.5)
=10×1
=10;
(5)42×(
+
-
)
=42×
+42×
-42×
=14+30-6
=44-6
=38;
(6)
×[1÷(
-
)]
=
×[1÷
]
=
×
=3.
3 3 34 4 4+
÷(1-
)
=
+
÷
=
+
=2;
(4)1.25×3.2×2.5
=1.25×(8×0.4)×2.5
=(1.25×8)×(0.4×2.5)
=10×1
=10;
(5)42×(
+
-
)
=42×
+42×
-42×
=14+30-6
=44-6
=38;
(6)
×[1÷(
-
)]
=
×[1÷
]
=
×
=3.
1 1 14 4 4÷(1-
)
=
+
÷
=
+
=2;
(4)1.25×3.2×2.5
=1.25×(8×0.4)×2.5
=(1.25×8)×(0.4×2.5)
=10×1
=10;
(5)42×(
+
-
)
=42×
+42×
-42×
=14+30-6
=44-6
=38;
(6)
×[1÷(
-
)]
=
×[1÷
]
=
×
=3.
4 4 45 5 5)
=
+
÷
=
+
=2;
(4)1.25×3.2×2.5
=1.25×(8×0.4)×2.5
=(1.25×8)×(0.4×2.5)
=10×1
=10;
(5)42×(
+
-
)
=42×
+42×
-42×
=14+30-6
=44-6
=38;
(6)
×[1÷(
-
)]
=
×[1÷
]
=
×
=3.
3 3 34 4 4+
÷
=
+
=2;
(4)1.25×3.2×2.5
=1.25×(8×0.4)×2.5
=(1.25×8)×(0.4×2.5)
=10×1
=10;
(5)42×(
+
-
)
=42×
+42×
-42×
=14+30-6
=44-6
=38;
(6)
×[1÷(
-
)]
=
×[1÷
]
=
×
=3.
1 1 14 4 4÷
=
+
=2;
(4)1.25×3.2×2.5
=1.25×(8×0.4)×2.5
=(1.25×8)×(0.4×2.5)
=10×1
=10;
(5)42×(
+
-
)
=42×
+42×
-42×
=14+30-6
=44-6
=38;
(6)
×[1÷(
-
)]
=
×[1÷
]
=
×
=3.
1 1 15 5 5
=
+
=2;
(4)1.25×3.2×2.5
=1.25×(8×0.4)×2.5
=(1.25×8)×(0.4×2.5)
=10×1
=10;
(5)42×(
+
-
)
=42×
+42×
-42×
=14+30-6
=44-6
=38;
(6)
×[1÷(
-
)]
=
×[1÷
]
=
×
=3.
3 3 34 4 4+
=2;
(4)1.25×3.2×2.5
=1.25×(8×0.4)×2.5
=(1.25×8)×(0.4×2.5)
=10×1
=10;
(5)42×(
+
-
)
=42×
+42×
-42×
=14+30-6
=44-6
=38;
(6)
×[1÷(
-
)]
=
×[1÷
]
=
×
=3.
5 5 54 4 4
=2;
(4)1.25×3.2×2.5
=1.25×(8×0.4)×2.5
=(1.25×8)×(0.4×2.5)
=10×1
=10;
(5)42×(
+
-
)
=42×
+42×
-42×
=14+30-6
=44-6
=38;
(6)
×[1÷(
-
)]
=
×[1÷
]
=
×
=3.
1 1 13 3 3+
-
)
=42×
+42×
-42×
=14+30-6
=44-6
=38;
(6)
×[1÷(
-
)]
=
×[1÷
]
=
×
=3.
5 5 57 7 7-
)
=42×
+42×
-42×
=14+30-6
=44-6
=38;
(6)
×[1÷(
-
)]
=
×[1÷
]
=
×
=3.
2 2 214 14 14)
=42×
+42×
-42×
=14+30-6
=44-6
=38;
(6)
×[1÷(
-
)]
=
×[1÷
]
=
×
=3.
1 1 13 3 3+42×
-42×
=14+30-6
=44-6
=38;
(6)
×[1÷(
-
)]
=
×[1÷
]
=
×
=3.
5 5 57 7 7-42×
=14+30-6
=44-6
=38;
(6)
×[1÷(
-
)]
=
×[1÷
]
=
×
=3.
2 2 214 14 14
=14+30-6
=44-6
=38;
(6)
×[1÷(
-
)]
=
×[1÷
]
=
×
=3.
7 7 75 5 5×[1÷(
-
)]
=
×[1÷
]
=
×
=3.
2 2 23 3 3-
)]
=
×[1÷
]
=
×
=3.
1 1 15 5 5)]
=
×[1÷
]
=
×
=3.
7 7 75 5 5×[1÷
]
=
×
=3.
7 7 715 15 15]
=
×
=3.
7 7 75 5 5×
=3.
15 15 157 7 7
=3.
=580+18×15
=580+270
=850;
(2)14.87-3.34-5.66
=14.87-(3.34+5.66)
=14.87-9
=5.87;
(3)
3 |
4 |
1 |
4 |
4 |
5 |
=
3 |
4 |
1 |
4 |
1 |
5 |
=
3 |
4 |
5 |
4 |
=2;
(4)1.25×3.2×2.5
=1.25×(8×0.4)×2.5
=(1.25×8)×(0.4×2.5)
=10×1
=10;
(5)42×(
1 |
3 |
5 |
7 |
2 |
14 |
=42×
1 |
3 |
5 |
7 |
2 |
14 |
=14+30-6
=44-6
=38;
(6)
7 |
5 |
2 |
3 |
1 |
5 |
=
7 |
5 |
7 |
15 |
=
7 |
5 |
15 |
7 |
=3.
3 |
4 |
1 |
4 |
4 |
5 |
=
3 |
4 |
1 |
4 |
1 |
5 |
=
3 |
4 |
5 |
4 |
=2;
(4)1.25×3.2×2.5
=1.25×(8×0.4)×2.5
=(1.25×8)×(0.4×2.5)
=10×1
=10;
(5)42×(
1 |
3 |
5 |
7 |
2 |
14 |
=42×
1 |
3 |
5 |
7 |
2 |
14 |
=14+30-6
=44-6
=38;
(6)
7 |
5 |
2 |
3 |
1 |
5 |
=
7 |
5 |
7 |
15 |
=
7 |
5 |
15 |
7 |
=3.
1 |
4 |
4 |
5 |
=
3 |
4 |
1 |
4 |
1 |
5 |
=
3 |
4 |
5 |
4 |
=2;
(4)1.25×3.2×2.5
=1.25×(8×0.4)×2.5
=(1.25×8)×(0.4×2.5)
=10×1
=10;
(5)42×(
1 |
3 |
5 |
7 |
2 |
14 |
=42×
1 |
3 |
5 |
7 |
2 |
14 |
=14+30-6
=44-6
=38;
(6)
7 |
5 |
2 |
3 |
1 |
5 |
=
7 |
5 |
7 |
15 |
=
7 |
5 |
15 |
7 |
=3.
4 |
5 |
=
3 |
4 |
1 |
4 |
1 |
5 |
=
3 |
4 |
5 |
4 |
=2;
(4)1.25×3.2×2.5
=1.25×(8×0.4)×2.5
=(1.25×8)×(0.4×2.5)
=10×1
=10;
(5)42×(
1 |
3 |
5 |
7 |
2 |
14 |
=42×
1 |
3 |
5 |
7 |
2 |
14 |
=14+30-6
=44-6
=38;
(6)
7 |
5 |
2 |
3 |
1 |
5 |
=
7 |
5 |
7 |
15 |
=
7 |
5 |
15 |
7 |
=3.
3 |
4 |
1 |
4 |
1 |
5 |
=
3 |
4 |
5 |
4 |
=2;
(4)1.25×3.2×2.5
=1.25×(8×0.4)×2.5
=(1.25×8)×(0.4×2.5)
=10×1
=10;
(5)42×(
1 |
3 |
5 |
7 |
2 |
14 |
=42×
1 |
3 |
5 |
7 |
2 |
14 |
=14+30-6
=44-6
=38;
(6)
7 |
5 |
2 |
3 |
1 |
5 |
=
7 |
5 |
7 |
15 |
=
7 |
5 |
15 |
7 |
=3.
1 |
4 |
1 |
5 |
=
3 |
4 |
5 |
4 |
=2;
(4)1.25×3.2×2.5
=1.25×(8×0.4)×2.5
=(1.25×8)×(0.4×2.5)
=10×1
=10;
(5)42×(
1 |
3 |
5 |
7 |
2 |
14 |
=42×
1 |
3 |
5 |
7 |
2 |
14 |
=14+30-6
=44-6
=38;
(6)
7 |
5 |
2 |
3 |
1 |
5 |
=
7 |
5 |
7 |
15 |
=
7 |
5 |
15 |
7 |
=3.
1 |
5 |
=
3 |
4 |
5 |
4 |
=2;
(4)1.25×3.2×2.5
=1.25×(8×0.4)×2.5
=(1.25×8)×(0.4×2.5)
=10×1
=10;
(5)42×(
1 |
3 |
5 |
7 |
2 |
14 |
=42×
1 |
3 |
5 |
7 |
2 |
14 |
=14+30-6
=44-6
=38;
(6)
7 |
5 |
2 |
3 |
1 |
5 |
=
7 |
5 |
7 |
15 |
=
7 |
5 |
15 |
7 |
=3.
3 |
4 |
5 |
4 |
=2;
(4)1.25×3.2×2.5
=1.25×(8×0.4)×2.5
=(1.25×8)×(0.4×2.5)
=10×1
=10;
(5)42×(
1 |
3 |
5 |
7 |
2 |
14 |
=42×
1 |
3 |
5 |
7 |
2 |
14 |
=14+30-6
=44-6
=38;
(6)
7 |
5 |
2 |
3 |
1 |
5 |
=
7 |
5 |
7 |
15 |
=
7 |
5 |
15 |
7 |
=3.
5 |
4 |
=2;
(4)1.25×3.2×2.5
=1.25×(8×0.4)×2.5
=(1.25×8)×(0.4×2.5)
=10×1
=10;
(5)42×(
1 |
3 |
5 |
7 |
2 |
14 |
=42×
1 |
3 |
5 |
7 |
2 |
14 |
=14+30-6
=44-6
=38;
(6)
7 |
5 |
2 |
3 |
1 |
5 |
=
7 |
5 |
7 |
15 |
=
7 |
5 |
15 |
7 |
=3.
1 |
3 |
5 |
7 |
2 |
14 |
=42×
1 |
3 |
5 |
7 |
2 |
14 |
=14+30-6
=44-6
=38;
(6)
7 |
5 |
2 |
3 |
1 |
5 |
=
7 |
5 |
7 |
15 |
=
7 |
5 |
15 |
7 |
=3.
5 |
7 |
2 |
14 |
=42×
1 |
3 |
5 |
7 |
2 |
14 |
=14+30-6
=44-6
=38;
(6)
7 |
5 |
2 |
3 |
1 |
5 |
=
7 |
5 |
7 |
15 |
=
7 |
5 |
15 |
7 |
=3.
2 |
14 |
=42×
1 |
3 |
5 |
7 |
2 |
14 |
=14+30-6
=44-6
=38;
(6)
7 |
5 |
2 |
3 |
1 |
5 |
=
7 |
5 |
7 |
15 |
=
7 |
5 |
15 |
7 |
=3.
1 |
3 |
5 |
7 |
2 |
14 |
=14+30-6
=44-6
=38;
(6)
7 |
5 |
2 |
3 |
1 |
5 |
=
7 |
5 |
7 |
15 |
=
7 |
5 |
15 |
7 |
=3.
5 |
7 |
2 |
14 |
=14+30-6
=44-6
=38;
(6)
7 |
5 |
2 |
3 |
1 |
5 |
=
7 |
5 |
7 |
15 |
=
7 |
5 |
15 |
7 |
=3.
2 |
14 |
=14+30-6
=44-6
=38;
(6)
7 |
5 |
2 |
3 |
1 |
5 |
=
7 |
5 |
7 |
15 |
=
7 |
5 |
15 |
7 |
=3.
7 |
5 |
2 |
3 |
1 |
5 |
=
7 |
5 |
7 |
15 |
=
7 |
5 |
15 |
7 |
=3.
2 |
3 |
1 |
5 |
=
7 |
5 |
7 |
15 |
=
7 |
5 |
15 |
7 |
=3.
1 |
5 |
=
7 |
5 |
7 |
15 |
=
7 |
5 |
15 |
7 |
=3.
7 |
5 |
7 |
15 |
=
7 |
5 |
15 |
7 |
=3.
7 |
15 |
=
7 |
5 |
15 |
7 |
=3.
7 |
5 |
15 |
7 |
=3.
15 |
7 |
=3.
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