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031_G1U20_G1U21˙—» ¿º 2011.3.22 4:24 PM ˘ ` 40 PDF_In 2540DPI 150LPI T
Activity 3 Make Numbers to 20
1 Make numbers to 20.
Let’s Play What you need:
Geo Cubes
1. Divide into 2 teams.
2. Use 5 sets of geo cubes to make numbers
to 20.
1
2
4
8
16
3. Only use each number once. )
Example:
6 = 2 + 2 + 2 ( ), 6 = 2 + 4 (
Add 1 and 2 to
make 3.
1+2=3
+
40
Activity 3 Make Numbers to 20
1 Make numbers to 20.
Let’s Play What you need:
Geo Cubes
1. Divide into 2 teams.
2. Use 5 sets of geo cubes to make numbers
to 20.
1
2
4
8
16
3. Only use each number once. )
Example:
6 = 2 + 2 + 2 ( ), 6 = 2 + 4 (
Add 1 and 2 to
make 3.
1+2=3
+
40
