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Math · 1 · 15 minutes

Addition Within 20: Building Real Understanding

A short practice set that helps a child see addition as joining groups, not just memorizing facts.

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Addition Within 20: Building Real Understanding

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Today I am practising: Understanding addition within 20 as combining two groups and finding the total.

1

There are 6 red blocks and 7 blue blocks. How many blocks are there in all?

2

A bowl has 8 apples. Someone adds 5 more apples. How many apples are in the bowl now?

3

Sam sees 9 birds on a wire and 4 birds on a fence. How many birds does Sam see altogether?

4

There are 3 cups on a table and 9 cups on a tray. How many cups are there in total?

5

A box holds 7 crayons. Another box holds 7 crayons. How many crayons are in the two boxes?

6

Mia reads 5 pages in the morning and 8 pages in the evening. How many pages does she read in all?

Grown-up guide
  1. Read each problem aloud once, let the child use small objects or fingers, and ask how they found the total.