Solve the following subtraction problems involving meters and centimeters.

Question

ScanSolve AI Tutor · Accepted Answer

Here are the solutions for the subtraction problems:

:

\begin{align*} & \quad 19 \text{ m } 22 \text{ cm} \\ &- \quad 11 \text{ m } 19 \text{ cm} \\ \hline \end{align*}

Subtract the centimeters.
$22 \text{ cm} - 19 \text{ cm} = 3 \text{ cm}$
Subtract the meters.
$19 \text{ m} - 11 \text{ m} = 8 \text{ m}$
The result for the first problem is:
$\boxed{\text{8 m 3 cm}}$
:
$\begin{align*} & \quad 74 \text{ m } 90 \text{ cm} \\ &- \quad 18 \text{ m } 98 \text{ cm} \\ \hline \end{align*}$
Subtract the centimeters.
Since $90 \text{ cm} < 98 \text{ cm}$ , we need to borrow $1 \text{ m}$ from $74 \text{ m}$ .
$1 \text{ m} = 100 \text{ cm}$ .
So, $74 \text{ m}$ becomes $73 \text{ m}$ , and $90 \text{ cm}$ becomes $90 \text{ cm} + 100 \text{ cm} = 190 \text{ cm}$ .
Subtract the centimeters with the borrowed value.
$190 \text{ cm} - 98 \text{ cm} = 92 \text{ cm}$
Subtract the meters (remembering that $74 \text{ m}$ became $73 \text{ m}$ ).
$73 \text{ m} - 18 \text{ m} = 55 \text{ m}$
The result for the second problem is:
$\boxed{\text{55 m 92 cm}}$

Step-by-step solution