The “Rainbow Facts” are pairs of numbers whose sum is 10. These are really useful facts lot of everyday contexts, including shopping, where you are often subtracting amounts from 10 or 100.
Students can learn these using ten frames to show counters in two colours which add up to 10.
The worksheets come from Ten Minutes a Day: Level 1, Book 1, written for students in Grade 1 (US), Year 1 (UK) or Year 2 (Australia).
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Download link: Free Math Worksheet – Addition Rainbow Facts