13 – 8 = 12 – 8 = 11 – 8 = 16 – 7 =
提升练习题
一、 口算
12– 6 = 11 – 6 = 14 – 5 = 13 – 5 =
6 + 9 = 6 + 8 = 6 + 7 =
15– 6 = 12 – 6 = 12 – 5 = 17 – 9 =
13– 4= 11 – 5 = 14 – 6 = 16 – 8=
16
15– 9= 18 – 9= 12 – 7= 14 – 9=
13– 7 = 12 – 9 = 11 – 3 = 12 – 5 = 13– 7 = 12 – 9 = 11 – 3 = 16– 9 = 15 – 8 = 13 – 8=
13– 7 = 12 – 9 = 11 – 3 =
17
12 – 5 =
– 6 =
12 – 5 =
11
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