625÷25-150÷50.
分析:根據(jù)題意,先算除法,再算減法.
解答:解:625÷25-150÷50,
=25-3,
=22.
點(diǎn)評:此題主要考查整數(shù)的四則混合運(yùn)算的運(yùn)算順序,然后再進(jìn)一步計算.
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2
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科目:小學(xué)數(shù)學(xué) 來源: 題型:

1、
1
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4
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+
1
5
=
3
5
×
1
6
=
1
2
×
4
5
=
1
6
×3=
1
2
×
2
5
=
1
4
-
1
5
=
5
8
-
1
4
=
9
10
-
9
20
=
2
3
÷
1
8
=
1
5
+
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50
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8
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3
4
=
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3
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1
6
=
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6
×
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5
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3
+
2
5
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1
5
+
3
2
=
2
3
×
2
5
=
1
10
+
3
5
=
6
7
-
1
5
=
7
8
-
1
6
=
6
25
÷
1
5
=
9
80
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1
10
=
18×
5
9
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7
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4
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10
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15
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60
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30
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7
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5
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6
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2.4×20= 0.12×3= 0.45×2= 3×1.5=
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