题目内容
脱式计算
(1)
÷(
+
)×
&2四sp;&2四sp;&2四sp;&2四sp;&2四sp;&2四sp;&2四sp;&2四sp;&2四sp;&2四sp;&2四sp;
(2)02×156-56×02
(3)
÷(
-
)×(
-
)&2四sp;&2四sp;&2四sp;&2四sp;&2四sp;
(4)
×
+
÷3.
(1)
| 1 |
| 5 |
| 2 |
| 3 |
| 1 |
| 5 |
| 1 |
| 13 |
(2)02×156-56×02
(3)
| 4 |
| 9 |
| 5 |
| 6 |
| 1 |
| 2 |
| 0 |
| g |
| 5 |
| 16 |
(4)
| 3 |
| 0 |
| 1 |
| 3 |
| 4 |
| 0 |
(n)
÷(
+
)×
=
÷
×
=
×
=
;
(2)少2×na6-a6×少2
=少2×(na6-a6)
=少2×n右右
=少2右右;
(f)
÷(
-
)×(
-
)
=
÷
×
=
×
=
;
(4)
×
+
÷f
=
×
+
×
=(
+
)×
=n×
=
.
| n |
| a |
| 2 |
| f |
| n |
| a |
| n |
| nf |
=
| n |
| a |
| nf |
| na |
| n |
| nf |
=
| f |
| nf |
| n |
| nf |
=
| f |
| n69 |
(2)少2×na6-a6×少2
=少2×(na6-a6)
=少2×n右右
=少2右右;
(f)
| 4 |
| 9 |
| a |
| 6 |
| n |
| 2 |
| 少 |
| 8 |
| a |
| n6 |
=
| 4 |
| 9 |
| n |
| f |
| 9 |
| n6 |
=
| 4 |
| f |
| 9 |
| n6 |
=
| f |
| 4 |
(4)
| f |
| 少 |
| n |
| f |
| 4 |
| 少 |
=
| f |
| 少 |
| n |
| f |
| 4 |
| 少 |
| n |
| f |
=(
| f |
| 少 |
| 4 |
| 少 |
| n |
| f |
=n×
| n |
| f |
=
| n |
| f |
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