题目内容
①0.65×6.4-6.5×0.54+65×9%
②12.5×0.56+1.4÷
③
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②12.5×0.56+1.4÷
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| 5 |
③
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| 11 |
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| 55 |
| 56 |
| 71 |
| 72 |
| 89 |
| 90 |
(1)0.65×6.4-6.5×0.54+65×9%,
=0.65×6.4-0.65×5.4+0.65×9,
=0.65×(6.4-5.4+9),
=0.65×10,
=6.5;
(2)12.5×0.56+1.4÷
,
=7+3.5,
=10.5;
(3)
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=1+1+1+1+1+1+1+1+
,
=8
.
=0.65×6.4-0.65×5.4+0.65×9,
=0.65×(6.4-5.4+9),
=0.65×10,
=6.5;
(2)12.5×0.56+1.4÷
| 2 |
| 5 |
=7+3.5,
=10.5;
(3)
| 1 |
| 2 |
| 5 |
| 6 |
| 11 |
| 12 |
| 19 |
| 20 |
| 29 |
| 30 |
| 41 |
| 42 |
| 55 |
| 56 |
| 71 |
| 72 |
| 89 |
| 90 |
=
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 3 |
| 2 |
| 3 |
| 1 |
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| 1 |
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| 1 |
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| 6 |
| 1 |
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| 1 |
| 8 |
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| 8 |
| 1 |
| 9 |
| 8 |
| 9 |
| 1 |
| 10 |
=1+1+1+1+1+1+1+1+
| 1 |
| 10 |
=8
| 1 |
| 10 |
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