Fill in the blanks to make the statement true: $88880000000=\_\_\_\_\_\times {10}^{10}$.

Fill in the blanks to make the statements true.

$(400-7)\times 215=\_\_\_\_\_-\_\_\_\_\_\_$

Fill in the blanks to make the statements true.

$698\times 0=\_\_\_\_\_\_\_\_\_\_.$

Fill in the blanks to make the statements true.

$191\times 1=\_\_\_\_\_\_$

Question 34

In the following question, fill in the blanks to make the statements true.

The multiplicative inverse of ${10}^{10}$ is ___

Question 57

In the following question, fill in the blanks to make the statements true.

The usual form fo $2.3\times {10}^{10}$ is ___ .