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Challenge your students to solve this broken calculator puzzle by creating every number from 1 to 20 using only the digits 4 and 7.

$Broken calculator math worksheet where students use only the numbers 4 and 7 to create values from 1 to 20.$

Broken calculator math worksheet where students use only the numbers 4 and 7 to create values from 1 to 20.

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(view all fourth grade math topics)

$Math Skills your Child Will Learn in Fourth Grade - Komodo Math$