28の性質
かけ算28の段（28の倍数）
- 28 × 1 = 28
- 28 × 2 = 56
- 28 × 3 = 84
- 28 × 4 = 112
- 28 × 5 = 140
- 28 × 6 = 168
- 28 × 7 = 196
- 28 × 8 = 224
- 28 × 9 = 252
- 28 × 10 = 280
- 28 × 11 = 308
- 28 × 12 = 336
- 28 × 13 = 364
- 28 × 14 = 392
- 28 × 15 = 420
- 28 × 16 = 448
- 28 × 17 = 476
- 28 × 18 = 504
- 28 × 19 = 532
- 28 × 20 = 560
- 28 × 21 = 588
- 28 × 22 = 616
- 28 × 23 = 644
- 28 × 24 = 672
- 28 × 25 = 700
- 28 × 26 = 728
- 28 × 27 = 756
- 28 × 28 = 784
- 28 × 29 = 812
- 28 × 30 = 840
- 28 × 31 = 868
- 28 × 32 = 896
- 28 × 33 = 924
- 28 × 34 = 952
- 28 × 35 = 980
- 28 × 36 = 1008
- 28 × 37 = 1036
- 28 × 38 = 1064
- 28 × 39 = 1092
- 28 × 40 = 1120
- 28 × 41 = 1148
- 28 × 42 = 1176
- 28 × 43 = 1204
- 28 × 44 = 1232
- 28 × 45 = 1260
- 28 × 46 = 1288
- 28 × 47 = 1316
- 28 × 48 = 1344
- 28 × 49 = 1372
- 28 × 50 = 1400
- 28 × 51 = 1428
- 28 × 52 = 1456
- 28 × 53 = 1484
- 28 × 54 = 1512
- 28 × 55 = 1540
- 28 × 56 = 1568
- 28 × 57 = 1596
- 28 × 58 = 1624
- 28 × 59 = 1652
- 28 × 60 = 1680
- 28 × 61 = 1708
- 28 × 62 = 1736
- 28 × 63 = 1764
- 28 × 64 = 1792
- 28 × 65 = 1820
- 28 × 66 = 1848
- 28 × 67 = 1876
- 28 × 68 = 1904
- 28 × 69 = 1932
- 28 × 70 = 1960
- 28 × 71 = 1988
- 28 × 72 = 2016
- 28 × 73 = 2044
- 28 × 74 = 2072
- 28 × 75 = 2100
- 28 × 76 = 2128
- 28 × 77 = 2156
- 28 × 78 = 2184
- 28 × 79 = 2212
- 28 × 80 = 2240
- 28 × 81 = 2268
- 28 × 82 = 2296
- 28 × 83 = 2324
- 28 × 84 = 2352
- 28 × 85 = 2380
- 28 × 86 = 2408
- 28 × 87 = 2436
- 28 × 88 = 2464
- 28 × 89 = 2492
- 28 × 90 = 2520
- 28 × 91 = 2548
- 28 × 92 = 2576
- 28 × 93 = 2604
- 28 × 94 = 2632
- 28 × 95 = 2660
- 28 × 96 = 2688
- 28 × 97 = 2716
- 28 × 98 = 2744
- 28 × 99 = 2772
- 28 × 100 = 2800
28 の倍数は 7 の倍数でもあり、4 の倍数でもあります。$28×9$ までは覚えると便利。
