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Back to Exercise: Operations on Integers

Exercises: Operations on Integers

Work through each section in order. Use a number line to check your add/subtract answers.

Grade 7·22 problems·~29 min·Uganda NCDC Primary 7 Mathematics·lesson·integers-01
Work through problems with immediate feedback
A

Recall / Warm-Up

1

On a number line, which side of zero are the negative numbers?

2

What is the opposite of +5?

3

Add 8 + 6 (whole numbers).

B

Fluency Practice

Number line from -5 to 5 with points marked at -4, -1, 0, 2, and 3
1

Order the integers -4, 3, 0, -1, 2 from smallest to largest:   ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲   ,   ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲   ,   ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲   ,   ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲   ,   ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲   .

1st:
2nd:
3rd:
4th:
5th:
2

Which is larger, −6 or −2?

3

Compute −3 + 5 (start at −3, step 5 right).

4

Compute 4 − 6 (start at 4, step 6 left).

5

Compute (+3) × (−4) by repeated addition of −4, three times.

6

Compute (−5) × (−4).

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