Maths Patterns, Inverses and Fractions

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Part 1: Patterns and Inverse Operations

WALT: We Are Learning To find number patterns and use inverse operations to check our answers.

1. Complete the pattern: 4, 8, 12, 16, ______, ______.

2. What is the rule for this pattern? 35, 30, 25, 20, 15

The rule is: ________________________________

3. Use the inverse operation to check: 27 + 18 = ______

4. Mia has 46 stickers. She gives 19 away. Write the number sentence and use the inverse to check your answer.

WALT: We Are Learning To place and compare fractions on a number line.

5. A strip is divided into 4 equal parts. One part is shaded. What fraction is shaded?

Answer: ______

6. Draw a number line from 0 to 1. Divide it into 4 equal parts and label the points 0, 1/4, 1/2, 3/4 and 1.

7. Place 1/2 and 3/4 on a number line. Which fraction is greater?

______ is greater because __________________________________________.

8. There are 8 apples. One-half of them are green. How many green apples are there?

WALT: We Are Learning To explain our mathematical thinking and create our own examples.

9. Use counters, blocks or small classroom objects to make a pattern that adds 3 each time. Draw or record the first five numbers.

10. Make a paper strip and fold it into 2, 4 or 8 equal parts. Label the fractions you can see. Explain how you know the parts are equal.

Support: Use counters, a hundreds chart, a number line or fraction strips. Work with a partner and say each step aloud.

Extension: Create a pattern with a changing rule, such as +2, +4, +6. Then write an addition or subtraction fact and its two inverse facts.