Which is a good strategy for 520 + 180: mental math or drawing blocks?

Q: What will my child learn in "Mixed review addition"?

Decide whether to use a model, mental math, or the algorithm. This 3rd Grade Math lesson builds the skill Add within 1,000 with a concept card and practice.

Q: What grade level is "Mixed review addition" for?

"Mixed review addition" is a 3rd Grade Math lesson in the Add and subtract unit, designed for students around ages 8-9.

Q: How many practice questions are in this lesson?

This lesson includes 29 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 "Mixed review addition"?

Sparq is a safe AI tutor that gives kid-friendly hints and explains Mixed review addition step by step, helping students learn without just giving away the answer.

Q: Do I need an account to practice "Mixed review addition"?

No account is needed to start — guests can try this 3rd Grade Math lesson for free. Signing in saves progress, unlocks more practice questions, and tracks mastery.

Question

Which is a good strategy for 520 + 180: mental math or drawing blocks?

Accepted Answer

mental math