问题 解答题

每组题只做一次笔算,其余两题通过小数点移位来解决.

(1)13×26=

1.3×26=

0.013×26=

(2)9.25×12=

92.5×12=

0.925×12=

(3)32×0.93=

32×0.093=

32×9.3=

答案

(1)13×26=338,

1.3×26=33.8,

0.013×26=0.338;

(2)9.25×12=111,

92.5×12=1110,

0.925×12=11.1;

(3)32×0.93=29.76,

32×0.093=2.976,

32×9.3=297.6.

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