Task Sets: Write, read, and evaluate expressions in which letters stand for numbers - Common Core Math - Grade 6

1.

Which expression represents 'the sum of $n$ and 7'?

A.

$n - 7$

B.

$7n$

C.

$n + 7$

D.

$\frac{n}{7}$

2.

Which expression represents 'subtract $y$ from 5'?

A.

$y - 5$

B.

$5 + y$

C.

$5y$

D.

$5 - y$

3.

In the expression $4x + 9$ , what is the coefficient of $x$ ?

A.

9

B.

4

C.

$x$

D.

$4x$

4.

Evaluate $3x + 1$ when $x = 5$ .

5.

Evaluate $3 + m^2$ when $m = 6$ .

Write, Read, and Evaluate Expressions in Which Letters Stand for Numbers