16、 X 2 =626 X 4 =342 X 8 =910 X 5 =674 X 6 =930 X 3 =第55天、 181 X 9 =384 X 4 =245 X 3 =825 X 2 =990 X 2 =498 X 6 =737 X 3 =414 X 4 =706 X 2 =677 X 2 =第56天、 970 X 8 =67 X 4 =655 X 5 =862 X 8 =401 X 3 =919 X 2 =55 X 8 =6 X 4 =632 X 8 =372 X 8 =第57天、 513 X 3 =582 X 7 =903 X 6 =592 X 8 =528 X 4 =76 X 9 =59 。

17、5 X 9 =10 X 9 =989 X 2 =491 X 6 =第58天、 730 X 3 =825 X 5 =676 X 8 =845 X 9 =472 X 4 =500 X 2 =759 X 4 =672 X 2 =623 X 6 =264 X 9 =第59天、 299 X 9 =520 X 8 =126 X 6 =611 X 9 =748 X 8 =456 X 5 =568 X 9 =803 X 8 =449 X 6 =558 X 3 =第60天、 672 X 2 =364 X 5 =134 X 3 =424 X 8 =804 X 5 =586 X 5 =426 X 7 =666 X 9 =471 X 9 =27 X 7 。

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标题：三位数|三位数乘一位数的乘法练习[1]( 二 )