Understanding 20 as a completed count composed of 2 tens
Working with Groups
This unit contains missing number activities to practice seeing 20 as a completed group of 2 tens. Images of groups of tennis balls or 10s rods act as prompts to assist students in calculating 2 tens and ____ is the same as 2... and expressing this information in a word sentence or equation. The final task requires students to draw their own images to match the incomplete equations.
NZD incl GST
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