Fact Families Within 20

Shared unit · the copy everyone gets

Fact Families Within 20: Derive the four related facts from one addition family within 20 (CCSS 1.OA.6).

Content: 56 words

Show the class On the screen — you lead

One word at a time, big enough for the back row.

Worksheets

The workbook2 pages· one per child

Activities

Tap a game. Nothing to install.

Any game fills the screen for the whole class.

Build a fact family

Content56 math facts

This is the shared list everyone gets. Press a word to hear it. To turn words off or add your own, press Customize — that makes your own copy and leaves this one alone.

2 + 9 = 11
3 + 8 = 11
4 + 7 = 11
5 + 6 = 11
3 + 9 = 12
4 + 8 = 12
5 + 7 = 12
6 + 6 = 12

Show all 56 math factsShow fewer

2 + 11 = 13
4 + 9 = 13
5 + 8 = 13
6 + 7 = 13
2 + 12 = 14
3 + 11 = 14
5 + 9 = 14
6 + 8 = 14
7 + 7 = 14
2 + 13 = 15
3 + 12 = 15
4 + 11 = 15
6 + 9 = 15
7 + 8 = 15
2 + 14 = 16
3 + 13 = 16
4 + 12 = 16
5 + 11 = 16
7 + 9 = 16
8 + 8 = 16
2 + 15 = 17
3 + 14 = 17
4 + 13 = 17
5 + 12 = 17
6 + 11 = 17
8 + 9 = 17
2 + 16 = 18
3 + 15 = 18
4 + 14 = 18
5 + 13 = 18
6 + 12 = 18
7 + 11 = 18
9 + 9 = 18
2 + 17 = 19
3 + 16 = 19
4 + 15 = 19
5 + 14 = 19
6 + 13 = 19
7 + 12 = 19
8 + 11 = 19
2 + 18 = 20
3 + 17 = 20
4 + 16 = 20
5 + 15 = 20
6 + 14 = 20
7 + 13 = 20
8 + 12 = 20
9 + 11 = 20