 # Jelly Beans in a Jar ~ Missing Addend, What makes 10?        Subject
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Format
PDF (1 MB|8 pages)
Standards
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• Standards

Students can show fluency within 10. They can determine the unknown whole number in an addition or subtraction number sentence.

Included are twelve engaging flash cards to add to your number talks.

I designed these cards for daily number talks but you could easily use them at a math station. Simple add your own identifying number to the card as well as a piece of notebook paper and the students can write a number sentence to match the card.

You could also print them out at less than 100% and use them as cards for a game.

If you like this activity, check out

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to see state-specific standards (only available in the US).
Determine the unknown whole number in an addition or subtraction equation relating three whole numbers. For example, determine the unknown number that makes the equation true in each of the equations 8 + ? = 11, 5 = ▯ - 3, 6 + 6 = ▯.
Add and subtract within 20, demonstrating fluency for addition and subtraction within 10. Use strategies such as counting on; making ten (e.g., 8 + 6 = 8 + 2 + 4 = 10 + 4 = 14); decomposing a number leading to a ten (e.g., 13 - 4 = 13 - 3 - 1 = 10 - 1 = 9); using the relationship between addition and subtraction (e.g., knowing that 8 + 4 = 12, one knows 12 - 8 = 4); and creating equivalent but easier or known sums (e.g., adding 6 + 7 by creating the known equivalent 6 + 6 + 1 = 12 + 1 = 13).
Understand subtraction as an unknown-addend problem. For example, subtract 10 – 8 by finding the number that makes 10 when added to 8.
Total Pages
8 pages
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Teaching Duration
N/A
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