一、乘珠算		答	審核
1	27 × 77 =
2	73 × 82 =
3	79 × 53 =
4	63 × 45 =
5	42 × 84 =
6	57 × 49 =
7	75 × 69 =
8	78 × 68 =
9	97 × 40 =
10	35 × 47 =
11	56 × 90 =
12	20 × 24 =
13	52 × 76 =
14	95 × 15 =
15	32 × 37 =
16	91 × 26 =
17	62 × 94 =
18	11 × 88 =
19	36 × 71 =
20	93 × 34 =