AC9M1N03 • Year 1 Maths

Skip Counting and Equal Groups: Quick Check

Try each question first. Then open the answer to check the maths and the reasoning.

1. Count equal groups

Question: There are 6 equal groups of 5 counters. How many counters are there altogether?

Answer and explanation

30 counters. Skip count the six groups: 5, 10, 15, 20, 25, 30. Each number names the total after one more group of five.

2. Check that groups are equal

Question: Why is it not safe to skip count groups with 4, 4, 3 and 4 counters?

Answer and explanation

One group has only 3 counters, so the groups are not equal. Make every group the same size before skip counting.

3. Include the leftovers

Question: A collection has 4 groups of 10 counters and 3 loose counters. What is the total?

Answer and explanation

43 counters. Count the groups as 10, 20, 30, 40, then count on 41, 42, 43. The 3 loose counters still belong in the total.

What next?

Use the guided practice for more questions with feedback, then use the separate test when the learner is ready to work independently.