A student says 612 - 298 = 504. Is this reasonable?

Q: What will my child learn in "Judge reasonableness of solutions"?

Students use estimation and structure to decide if an answer makes sense. This 2nd Grade Math lesson builds the skill Flexible strategies with place value and computation with a concept card and practice.

Q: What grade level is "Judge reasonableness of solutions" for?

"Judge reasonableness of solutions" is a 2nd Grade Math lesson in the Extension: Mastery unit, designed for students around ages 7-8.

Q: How many practice questions are in this lesson?

This lesson includes 40 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 "Judge reasonableness of solutions"?

Sparq is a safe AI tutor that gives kid-friendly hints and explains Judge reasonableness of solutions step by step, helping students learn without just giving away the answer.

Q: Do I need an account to practice "Judge reasonableness of solutions"?

No account is needed to start — guests can try this 2nd Grade Math lesson for free. Signing in saves progress, unlocks more practice questions, and tracks mastery.

Question

A student says 612 - 298 = 504. Is this reasonable?

Accepted Answer

no