Multiplying an expression by a term | Maths | Quizalize & Oak National Academy

Expressions and equations

Multiplying an expression by a term

Starter quiz

In the expression $x-7$ the $-7$ is a constant. What do we call the $x$ ?

An exponent.

A variable term. ✓

An equation.
Match the expressions to their simplified form.

$x+x$

⇔

$2x$ ✓

$x \times x$

⇔

$x^2$ ✓

$x \times y$

⇔

$xy$ ✓

$y \times y$

⇔

$y^2$ ✓

$y+y$

⇔

$2y$ ✓
This area model helps us with which multiplication?

$9x \times 7$

$7 \times 9x$

$9(x+7)$ ✓

$7(x+9)$

$9 \times 7x$
This area model is used to expand $9(x+7)$ . What is hidden by the ink blots?

$9x$ and $7$

$63x$

$9x$ and $63$ ✓

$9x$ and $16$

$7x$ and $63$
Using distributive law $6(2x+3 +y)$ can also be written as which of the below?

$12x+18 +6y$ ✓

$62x+3+y$

$36xy$

$30xy$

$6+2x+3+y$
Match together the expressions which are always equal to each other.

$2(x+5)$

⇔

$2x+10$ ✓

$2(x-5)$

⇔

$2x-10$ ✓

$-2(x-5)$

⇔

$10-2x$ ✓

$-2(x+5)$

⇔

$-2x-10$ ✓

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