题目

口算 5×3=            2×1=            4×4=            6×2= 3×6=            2×3=            2×5=            4×5= 5×7=            1×5=            3×4=            8×4= 答案:5×3=15            2×1=2            4×4=16            6×2=12 3×6=18            2×3=6            2×5=10            4×5=20 5×7=35            1×5=5            3×4=12            8×4=32
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