Back to Exercise: Apply and extend previous understandings of addition and subtraction to add and subtract rational numbers

Adding and Subtracting Rational Numbers

Show all work. For fill-in-the-blank problems, write your answers in the blanks provided. Express fractions in simplest form unless otherwise stated.

Grade 7·21 problems·~30 min·Common Core Math - Grade 7·standard·7-ns-a-1

Work through problems with immediate feedback

Recall / Warm-Up

Which number is the additive inverse of $-\frac{2}{3}$ ?

$\frac{2}{3}$

$-\frac{2}{3}$

$\frac{3}{2}$

$-\frac{3}{2}$

What is $|-9|$ ?

$-9$

$9$

$\frac{1}{9}$

$0$

Compute $\frac{3}{4} + \frac{5}{6}$ . Express your answer as a fraction in simplest form.

Fluency Practice

$Number line from −12 to 2. Dot at −7. Leftward arrow of length 3 from −7, labeled +(−3). Question mark at endpoint.$

Compute $-7 + (-3)$ .

Compute $-8 + 13$ .

Compute $4 - 9$ .

Compute $6 - (-4)$ .

Rewrite $-3.5 - (-1.2)$ as addition. The missing addend is ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ , and the result is ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ .

addend:

result:

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