Rational number arithmetic

Practice sheet

Fresh questions from the whole chapter, to do on paper.

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Compute $7 + (-16)$ .
Compute $-9 - 10$ .
Compute $2 - (-5)$ .
Compute $(-6) \cdot 7$ .
Compute $(-4) \cdot (-6)$ .
Compute $(-144) \div 12$ .
Solve $3x + 3 = -18$ . $x = \;?$
Solve $4x + 8 = 3x + 9$ . $x = \;?$
Solve $6(x + 4) = 30$ . $x = \;?$

Answers

$-9$
$-19$
$7$
$-42$
$24$
$-12$
$-7$
$1$
$1$