このプリントはウェブサイトで無料ダウンロードできます。© 小学生の無料学習プリント【ちびむすドリル】http://happylilac.net/syogaku.html 分数と小数のかけ算分数と小数のかけ算分数と小数のかけ算名前 (1) 答え答え【１】次の計算をしなさい。( 答えが 1 以上のときは仮分数で表すこと。) ( 1) 1 2 × 0.1 = 1×1 2 × 10 = 1 20 ( 3) 3 4 × 0.8 = 3×4 4×5 = 3 5 ( 5) 10 7 × 0.7 = 10 × 7 7 × 10 =1 ( 7) 1 6 × 1.2 = 1×6 6×5 = 1 5 ( 9) 9 4 × 2.4 = 9 × 12 4×5 = 27 5 ( 2) 0.3 × 1 3 = 3×1 10 × 3 = 1 10 ( 4) 0.4 × 4 9 = 2×4 5×9 = 8 45 ( 6) 0.6 × 5 2 = 3×5 5×2 = 3 2 ( 8) 1.6 × 3 8 = 8×3 5×8 = 3 5 ( 10) 1.3 × 5 6 = 13 × 5 10 × 6 = 13 12 ( 11) 10 9 × 3.6 = 10 × 18 9×5 =4 ( 13) 4 11 × 0.11 = 4 × 11 11 × 100 = 1 25 ( 12) 3.3 × 15 11 = 33 × 15 10 × 11 = 9 2 ( 14) 0.81 × 4 9 = 81 × 4 100 × 9 = 9 25 【２】次の問題に答えなさい ( 1) 縦の長さが 2.8cm、横の長さが 8 7 cm の長方形の面積は何 cm 2 ですか。式 2.8 × 8 7 = 28 10 × 8 7 = 14 × 8 5×7 = 16 5 16 5 cm 2 ( ( 2) 面積が 1) の長方形の 0.75 倍の長方形の面積は何 cm 2 ですか。式 16 5 × 0.75 = 16 5 × 75 100 = 16× 3 5×4 = 12 5 12 5 cm 2 1 1 1 1 1 1 1 1 1 3 1 1 2 1 1 1 2 2 1 1 1 1 3 3 2 1 1 9 25 1 2 14 5 1 4 1 1 1 1 25 3 4

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http://happylilac.net/syogaku.html

(1)

( 1)

( 1) 12 0.1 = 1 12 10 = 120

( 3) 34 0.8 = 3 44 5 = 35

( 5) 107 0.7 = 10 77 10 = 1

( 7) 16 1.2 = 1 66 5 = 15

( 9) 94 2.4 = 9 124 5 = 275

( 2) 0.3 13 = 3 110 3 = 110

( 4) 0.4 49 = 2 45 9 = 845

( 6) 0.6 52 = 3 55 2 = 32

( 8) 1.6 38 = 8 35 8 = 35

( 10) 1.3 56 = 13 510 6 = 1312

( 11) 109 3.6 = 10 189 5 = 4

( 13) 411 0.11 = 4 1111 100 = 125

( 12) 3.3 1511 = 33 1510 11 = 92

( 14) 0.81 49 = 81 4100 9 = 925

( 1) 2.8cm87 cmcm2 2.8 87 = 2810 87 = 14 85 7 =165 165 cm2

( (2) 1)0.75cm2 165 0.75 =165 75100 = 16 35 4 =125 125 cm2

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http://happylilac.net/syogaku.html

(2)

( 1)

( 1) 13 0.8 = 1 43 5 = 415

( 3) 67 0.2 = 6 17 5 = 635

( 5) 32 1.2 = 3 62 5 = 95

( 7) 45 1.5 = 4 35 2 = 65

( 9) 58 6.4 = 5 328 5 = 4

( 2) 0.5 35 = 1 32 5 = 310

( 4) 0.7 914 = 7 910 14 = 920

( 6) 1.6 74 = 8 75 4 = 145

( 8) 2.5 74 = 5 72 4 = 358

( 10) 4.2 87 = 21 85 7 = 245

( 11) 209 0.27 = 20 279 100 = 35

( 13) 25 1.25 = 2 55 4 = 12

( 12) 0.40 37 = 2 35 7 = 635 ( 14) 0.64 158 = 16 1525 8 = 65

( 1) 1dL2.1 83 dL 2.1 83 = 2110 83 = 21 810 3 = 285 285 m2

( 2) 92 km0.25 km 92 0.25 = 92 25100 = 9 12 4 = 98 98 km

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http://happylilac.net/syogaku.html

(3)

( 1)

( 1) 157 0.7 = 15 77 10 = 32

( 3) 83 0.2 = 8 13 5 = 815

( 5) 14 1.2 = 1 64 5 = 310

( 7) 38 1.8 = 3 188 10 = 2740

( 9) 512 3.6 = 5 1812 5 = 32

( 2) 0.8 45 = 4 45 5 = 1625

( 4) 0.3 58 = 3 510 8 = 316

( 6) 1.4 914 = 14 910 14 = 910

( 8) 2.5 611 = 5 62 11 = 1511

( 10) 4.2 514 = 21 55 14 = 32

( 11) 1511 0.11 = 15 1111 100 = 320

( 13) 1213 0.30 = 12 313 10 = 1865

( 12) 0.24 78 = 24 7100 8 = 21100 ( 14) 1.23 53 = 123 5100 3 = 4120

( 1) 4.8cm256 cmcm2 4.8 20 20 256 = 4810 256 = = 24 255 6 cm2

( 2) 1m52 kg1.6m kg 52 1 4 4.6 = 52 1610 = 5 82 5 = kg

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(4)

( 1)

( 1) 25 0.7 = 2 75 10 = 725

( 3) 163 0.5 = 16 13 2 = 83

( 5) 29 1.9 = 2 199 10 = 1945

( 7) 52 5.4 = 5 272 5 = 272

( 9) 98 7.2 = 9 368 5 = 8110

( 2) 0.4 14 = 2 15 4 = 110

( 4) 0.1 127 = 1 1210 7 = 635

( 6) 2.7 512 = 27 510 12 = 98

( 8) 4.5 169 = 9 162 9 = 8

( 10) 8.1 827 = 81 810 27 = 125

( 11) 103 0.13 = 10 133 100 = 1330

( 13) 74 1.40 = 7 74 5 = 4920

( 12) 0.25 18 = 1 14 8 = 132 ( 14) 1.44 256 = 36 2525 6 = 6

( 1) 1dL158 1.8dL

158 1.8 = 158 1810 = 15 98 5 = 278 278 m2

( 2) 1m0.7kg45 m kg 0.7 45 = 710 45 = 7 410 5 = 1425 1425 kg

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http://happylilac.net/syogaku.html

(5)

( 1)

( 1) 94 0.6 = 9 34 5 = 2720

( 3) 35 1.5 = 3 35 2 = 910

( 5) 97 4.2 = 9 217 5 = 275

( 7) 74 5.6 = 7 284 5 = 495

( 9) 256 0.17 = 25 176 100 = 1724

( 2) 0.9 56 = 9 510 6 = 34

( 4) 2.2 521 = 11 55 21 = 1121

( 6) 3.6 78 = 18 75 8 = 6320

( 8) 6.4 98 = 32 95 8 = 365

( 10) 0.22 711 = 11 750 11 = 750

( 11) 125 0.70 = 12 75 10 = 4225

( 13) 811 1.21 = 8 12111 100 = 2225

( 12) 0.39 103 = 39 10100 3 = 1310

( 14) 0.81 1627 = 81 16100 27 = 1225

( 1) 154 cm3.6cmcm2 154 3.6 = 154 3610 = 15 184 5 = 272 272 cm2

( 2) 0.07km727 km 0.07 727 = 7100 727 = 7 72100 7 = 1825 1825 km

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