一、乘珠算		答	審核
1	32 × 55 =
2	77 × 49 =
3	24 × 98 =
4	53 × 71 =
5	85 × 75 =
6	39 × 19 =
7	67 × 48 =
8	61 × 87 =
9	60 × 20 =
10	76 × 64 =
11	78 × 50 =
12	36 × 13 =
13	97 × 72 =
14	83 × 59 =
15	14 × 92 =
16	66 × 35 =
17	86 × 22 =
18	17 × 69 =
19	74 × 94 =
20	54 × 51 =