(每題五分)
名數求至分位,以下四捨五入,無名數求至小數第五位,以下四捨五入.
| 一、乘珠算 |
答 |
審核 |
| 1 |
$41,080.33 × 7,835 =$ |
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| 2 |
$7,500.46 × 36,481 =$ |
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| 3 |
$34,551.62 × 9,278 =$ |
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| 4 |
$8,280.87 × 0.86295 =$ |
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| 5 |
$1,869.58 × 0.51259 =$ |
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| 6 |
807,308 × 73,965 = |
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| 7 |
0.38356 × 6.50034 = |
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| 8 |
995,958 × 98,126 = |
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| 9 |
74,450 × 808,357 = |
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| 10 |
0.770596 × 0.16620 = |
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| 11 |
$6,638.29 × 6.8106 =$ |
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| 12 |
$334.98 × 146,369 =$ |
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| 13 |
$125.73 × 500,236 =$ |
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| 14 |
$3,864.97 × 11,909 =$ |
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| 15 |
$3,143.80 × 0.89327 =$ |
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| 16 |
178,781 × 87,787 = |
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| 17 |
477.5812 × 68.21 = |
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| 18 |
0.857089 × 41.609 = |
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| 19 |
8,547,971 × 3,984 = |
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| 20 |
346,315 × 0.65936 = |
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香港珠心算專業教育協會 (www.abacusedu.org)
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