Is 3 × (19 + 21) = 90 reasonable?

Q: What will my child learn in "Check whether an expression value is reasonable"?

Approximate some operations mentally to predict the result size. This 5th Grade Math lesson builds the skill Evaluate expressions with order of operations with a concept card and practice.

Q: What grade level is "Check whether an expression value is reasonable" for?

"Check whether an expression value is reasonable" is a 5th Grade Math lesson in the Expressions and patterns unit, designed for students around ages 10-11.

Q: How many practice questions are in this lesson?

This lesson includes 39 practice questions with instant feedback. Guests can try a few for free, and signed-in learners get the full adaptive set that adjusts to their level.

Q: How does Sparq help with "Check whether an expression value is reasonable"?

Sparq is a safe AI tutor that gives kid-friendly hints and explains Check whether an expression value is reasonable step by step, helping students learn without just giving away the answer.

Q: Do I need an account to practice "Check whether an expression value is reasonable"?

No account is needed to start — guests can try this 5th Grade Math lesson for free. Signing in saves progress, unlocks more practice questions, and tracks mastery.

Question

Is 3 × (19 + 21) = 90 reasonable?

Accepted Answer

no