Sylvan Learning

Use multiplication as a check for division

Objectives

Student will be able to:

Introduction

Use multiplication to check a quotient.

Multiply the quotient by the divisor.

Add the remainder.

If the sum matches the dividend, the quotient is correct.

Check:

$\begin{align*} \ \ \ \, 8\\ \underline{\times \ \ \ 7}\\56 \end{align*}$ $\begin{align*} 56 \\ \underline {+ \ \ 2}\\ 58 \end{align*}$

Exercises

Use multiplication to check your answers. Show all work.

6 R1 $\inline \\6\times7=42\\42+1=43$ Check student's work. 1. Correct Incorrect Not Assigned

6 R6 $\inline \\6\times8=48\\48+6=54$ Check student's work. 2. Correct Incorrect Not Assigned

4 R6 $\inline \\4\times14=56\\56+6=62$ Check student's work. 3. Correct Incorrect Not Assigned

6 R7 $\inline \\6\times12=72\\72+7=79$ Check student's work. 4. Correct Incorrect Not Assigned

9 R6 $\inline \\9\times9=81\\81+6=87$ Check student's work. 5. Correct Incorrect Not Assigned

23 R1 $\inline \\23\times4=92\\92+1=93$ Check student's work. 6. Correct Incorrect Not Assigned