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1st grade
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Place value
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Count and write numbers within 120
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Place value with tens
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Compare two-digit numbers
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Addition and subtraction
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River crossing puzzles
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Add and subtract within 20
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Add within 20, word problems involving three addends
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Use one addition problem to solve another
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Add by making tens
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Subtract by adding
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Understand the equals sign
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Add and subtract within 20, missing number problems
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Add and subtract within 20, word problems
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Add within 100, concrete and pictorial
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10 more or 10 less
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Subtract multiples of ten from multiples of ten
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Measurement, data, and geometry
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Order without tools
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Measure given a unit
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Bar and picture graphs having three categories of data
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Tell and write time, hour and half-hours
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Definitions of shapes
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Compose 2D and 3D shapes
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Halves and quarters
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1st grade
›
Addition and subtraction
›
Add and subtract within 20
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Other resources
Adding a two-digit number and a multiple of ten
YouTube videos
9579
Y2 Add a multiple of 10 to a 2 digit number
Armitage Primary