3級 かけざん 練習問題

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 れんしゅう 1  (注意)小数第3位未満四捨五入
(1) * 49,781 × 4.3 =
(2)   229.06 × 8.1 =
(3)   9,353 × 8.76 =
(4)   734.7 × 9.54 =
(5)   10.85 × 7.98 =
(6)   6,468 × 32.6 =
(7)   283 × 51.96 =
(8) * 45.68 × 29.4 =
(9)   559 × 650.7 =
(10) * 4,039 × 0.791 =
(11)   6,708 × 0.694 =
(12)   1,845 × 0.156 =
(13)   5,861 × 0.063 =
(14) * 792 × 0.0765 =
(15)   287.5 × 0.064 =
(16) * 0.9608 × 8.75 =
(17)   0.5875 × 1.36 =
(18)   0.0375 × 6.24 =
(19)   0.5312 × 82.5 =
(20) * 0.0625 × 92.8 =
 れんしゅう 2  (注意)小数第3位未満四捨五入
(1) * 0.9024 × 0.735 =
(2)   0.3918 × 0.409 =
(3)   0.602 × 0.5001 =
(4)   0.971 × 0.6182 =
(5) * 0.704 × 0.0946 =
(6)   0.853 × 0.419 =
(7)   0.294 × 0.0849 =
(8)   0.732 × 0.0915 =
(9)   0.714 × 0.0806 =
(10)   0.506 × 0.0605 =
(11) * 0.0465 × 0.351 =
(12)   0.0158 × 0.449 =
(13)   0.072 × 0.9318 =
(14) * 0.089 × 0.8962 =
(15)   0.0287 × 0.971 =
(16)   0.046 × 0.0512 =
(17) * 0.0815 × 0.019 =
(18)   0.0057 × 0.201 =
(19)   0.607 × 0.0026 =
(20)   0.953 × 0.0057 =
 れんしゅう 3  (注意)円位未満四捨五入
(1) * ¥ 20,305 × 5.8 =
(2)   ¥ 7,450 × 2.66 =
(3)   ¥ 1,675 × 5.72 =
(4)   ¥ 9,528 × 17.5 =
(5)   ¥ 728 × 23.75 =
(6)   ¥ 304 × 362.5 =
(7) * ¥ 8,744 × 0.625 =
(8)   ¥ 5,648 × 0.125 =
(9)   ¥ 6,920 × 0.025 =
(10)   ¥ 3,625 × 0.024 =
(11) * ¥ 8,736 × 0.387 =
(12)   ¥ 4,875 × 0.164 =
(13)   ¥ 820 × 0.3347 =
(14)   ¥ 5,013 × 0.042 =
(15) * ¥ 482 × 0.0916 =
(16)   ¥ 7,037 × 0.057 =
(17)   ¥ 271 × 0.0452 =
(18)   ¥ 1,285 × 0.069 =
(19) * ¥ 60,871 × 0.0041 =
(20)   ¥ 54,106 × 0.0013 =

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