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Number of building blocks
Find the hidden building blocks to find the total number of building blocks.
9
Building blocks you can see: 7
Hidden building blocks: 2
Example 1 Write the total number of building blocks in the ( ).
( ) ( )
( ) ( )
3. Counting building blocks 29
Find the hidden building blocks to find the total number of building blocks.
9
Building blocks you can see: 7
Hidden building blocks: 2
Example 1 Write the total number of building blocks in the ( ).
( ) ( )
( ) ( )
3. Counting building blocks 29
