问题 解答题

2.36×9.9=2.36×10-0.1=23.5______.(判断对错)

答案

2.36×9.9

=2.36×(10-0.1)

=2.36×10-2.36×0.1

=23.6-0.236

=23.364

23.364≠23.5

故答案为:×.

多项选择题
单项选择题