Sign Up For Our Newsletter


Determine The Unknown Number In The Addition...


Welcome to Math Quiz #24580

Determine the Unknown Number in the Addition or Subtraction Equation (up to 20)

There are 10 problems in this quiz which support the following standard:

CCSS.Math.Content.1.OA.D.8. 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 = ?.

This page can be found quickly using this link: http://i4c.xyz/ya333ohj

Press "Start" to begin.

Internet4classrooms is a collaborative effort by Susan Brooks and Bill Byles.




Use of this Web site constitutes acceptance of our Terms of Service and Privacy Policy

1694708730266649 US 1 desktop not tablet not iPad device-width