Count Quantities within 20
Count the objects and enter how many you see.
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Grade 1: make numbers meaningful.
Start with objects you can count, connect them to numerals, then build addition and subtraction within 20.
A MathApex learning path, not complete curriculum coverage.
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Count Quantities within 20
Count the objects and enter how many you see.
A gentle first path
Begin by counting visible objects and matching each group to its numeral. A number line then gives those values a position: moving forward adds, and moving backward subtracts. When those ideas feel familiar, work with sums and differences up to 20.
How to use these resources
Choose one short online practice session first. If a child needs to see the quantities, return to counting or the number line before repeating a fact. Print a worksheet for quiet pencil work, then check the separate answer key together. A wrong answer is a clue about the strategy to revisit, not a reason to speed up.
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Matching practice and worksheets
Match Quantities and Numbers within 20
Look at the quantity and choose the matching number.
Read Number Lines within 20
Work out the value at each marked position and enter the number.
Addition within 20
Solve ten addition questions at your own pace. The round begins with familiar sums and builds towards crossing ten.
Subtraction within 20
Solve ten subtraction questions at your own pace. The round begins with familiar facts and builds towards crossing ten.