分数乘法计算题练习
7× × 8× ×50
×24 × × ×
20× ×12 ×11 56×
× × × ×
×2 × 1×8 1×3
1×18 15× 2× ×24
×× ×- 1×21 ×1
×1 1×1×2 1×× ×5
2×× 3×22 4×2 14×4
2×12 ×7 3× 150×
×5 27× ×15 19×
72× × × ×
×24 48× × 28×
8× × 1× 1×
×1 ×2 3× 2×
× 1 ×1 (+)×12 × 101
1×8+×8 ×6+6× 2 ×5 ×2
× 4× 1× 32 × 3
(-)×50 4×1× 2×6×3
×× × ×× ××
108× × × ×240
× × + ×
2× 5 ×2 ×2 1×
4× 2× 2×3 2×1
3× ×1 2×1× 3× 15 ×
2×3× ×× ×1×1
2×12 3×14 5×4 7×2
3×4 7 ×3 ×12 ×11××35
×= 7×= ×= ×= ×12=
×24= ÷2= 12÷= 1÷= ×=
÷= 8÷= ÷= ÷= ÷3=
×= -= ×= 240÷= ×=
÷= ×12= ÷= ×= ÷=
1÷= ÷3 = (+)×12= 1-÷=
÷×1= ÷×= ×÷= (+)×=
÷×7 –(+) ×–
25÷(–) +–(–)÷(+)
[1–(+)]
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