1.直接写出得数。(每题1★)
$2×5=$ $6×7=$ $1×9=$
$7×3=$ $9×5=$ $4×2=$
$6+8=$ $2×8=$ $5+7=$
$9×2=$ $2×6=$ $7×9=$
$4×7=$ $3+9=$ $1+8=$
$8×1=$ $1×6=$ $4×3=$
$6×5=$ $8+6=$ $2×7=$
$5×2=$ $8×9=$ $3×4=$
$9×6=$ $1×4=$ $6×8=$
$4+7=$ $7×1=$ $8×2=$
$9×8=$ $4×9=$ $3×2=$
$5×7=$ $2×3=$ $2×4=$
$2×5=$ $6×7=$ $1×9=$
$7×3=$ $9×5=$ $4×2=$
$6+8=$ $2×8=$ $5+7=$
$9×2=$ $2×6=$ $7×9=$
$4×7=$ $3+9=$ $1+8=$
$8×1=$ $1×6=$ $4×3=$
$6×5=$ $8+6=$ $2×7=$
$5×2=$ $8×9=$ $3×4=$
$9×6=$ $1×4=$ $6×8=$
$4+7=$ $7×1=$ $8×2=$
$9×8=$ $4×9=$ $3×2=$
$5×7=$ $2×3=$ $2×4=$
答案
10 42 9 21 45 8 14 16 12
18 12 63 28 12 9 8 6 12
30 14 14 10 72 12 54 4 48
11 7 16 72 36 6 35 6 8
18 12 63 28 12 9 8 6 12
30 14 14 10 72 12 54 4 48
11 7 16 72 36 6 35 6 8
2.下面的算式分别可以用哪句乘法口诀计算?连一连。(8★)

答案
登录