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Reach Crest Learning

Count and compare · Lesson 11 of 32

Count in fives and tens

Read with an adult. Take your time. You can say, point, draw or write your answer.

Let's look together

One hand has five fingers. Two hands have ten. We can count groups of five: 5, 10, 15, 20.

Ten is two fives. Count full groups of ten: 10, 20, 30, 40. Each jump adds another equal group.

5 → 10 → 15 → 2010 → 20 → 30 → 40
Look, point and talk with your adult.

Watch how I do it

Four groups of five counters make 20. Four groups of ten make 40. The group size matters.

Your turn

Finish: 10, 20, 30, __, __. Then finish: 5, 10, __, 20.

Have a go before opening the answer.

Let's check together

40, 50; and 15.

Try it away from the page

Build five equal groups. Count in fives. Rebuild using tens and count towards 100.

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Adult notes · prerequisites, safety and coverage

Prerequisite: equal groups and counting to 20. Teach fives and tens on separate days before comparing them.

Use large counters, blocks and paper before symbols. Revisit a lesson until the child can show and explain the idea. Numbers grow from 0–10 to 20, then 100; these pages are not a one-sitting course.

These are teaching introductions, not a claim of mastery. Open the subject's coverage map and limits.