Addition as combining groups

UNDERSTAND · PRACTISE · REVIEW

Use two visible groups before introducing a written sum. Encourage counting on from the larger group instead of recounting every object. Compare the answer with a quick estimate.

A worked example

Try this learning routine

1. Read the explanation and say the idea in your own words.
2. Cover the worked answer and attempt a similar question.
3. Check each step, including units or word meaning.
4. Record one mistake and retry a new example later.

Independent practice

Choose one answer for each question and write a reason. These are foundation activities, not a complete board examination.

1. Add 5 and 2.

   • 9
   • 10
   • 7
   • 8

2. Add 6 and 3.

   • 10
   • 9
   • 12
   • 11

3. Add 7 and 4.

   • 12
   • 11
   • 13
   • 14

4. Add 8 and 5.

   • 14
   • 15
   • 16
   • 13

5. Add 9 and 6.

   • 18
   • 16
   • 17
   • 15

6. Add 10 and 7.

   • 17
   • 19
   • 20
   • 18

Your next step

Use the same idea in a fresh example. Bring the method and your questions to a discussion with TRICEF, rather than relying on a score alone.

Original TRICEF Academy practice material. Not an official board paper. Open the answer section before printing if you want the answer key included.