整數加法計算題：1. 12 + 52 = 642. 56 + 42 = 983. 32 + 47 = 794. 62 + 21 = 835. 59 + 21 = 80

整數減法計算題：1. 6241 = 212. 5325 = 283. 8514 = 714. 6358 = 55. 2312 = 11

整數乘法計算題：1. 12 × 5 = 602. 21 × 3 = 633. 5 × 14 = 704. 15 × 4 = 605. 54 × 2 = 108

小數乘法計算題：1. 3.2 × 4 = 12.82. 1.2 × 4 = 4.83. 5.3 × 3 = 15.94. 2.5 × 4 = 105. 6.8 × 2 = 13.6

整數除法計算題：1. 56 ÷ 7 = 82. 81 ÷ 9 = 93. 18 ÷ 6 = 34. 21 ÷ 7 = 35. 64 ÷ 8 = 8