六年级下册数学题200道（包括口算、脱试计算、简便运算）
推荐回答（1个）
8 × 5/6 + 5/6
1/4 × 8/9 - 1/3
10 × 5/49 + 3/14
1.5 ×（ 1/2 + 2/3 ）
2／9 × 4/5 + 8 × 11/5
3.1 × 5/6 – 5/6
4/7 - （ 2/7 – 10/21 ）
19 × 18 – 14 × 2/7
5 × 25/16 + 2/3 × 3/4
4 × 8/7 – 5/6 × 12/15
简算题
1.45+15×6= 135
2.250÷5×8=400
3.6×5÷2×4=60
4.30×3+8=98
5.400÷4+20×5= 200
6.10+12÷3+20=34
7.(80÷20+80)÷4=21
8.70+(100-10×5)=120
9.360÷40+10= 19
10.40×20-200= 600
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