{{ drag.item.val }}
🚀

Slide to Round

Round each number to the nearest ten to prepare for estimation.

{{ step1.n1Min }}
Target
{{ step1.n1Max }}
{{ step1.n1Val }}
{{ step1.n2Min }}
Target
{{ step1.n2Max }}
{{ step1.n2Val }}
🧩

Drag to Build

Drag the rounded numbers to build the estimated equation.

Estimate:
{{ item.val }}
{{ step2.zones[0].val }}
×
{{ step2.zones[1].val }}
=
{{ step2.zones[2].val }}
🎈

Tap to Pop

Find the compatible number to estimate the quotient.

1. Tap the closest compatible dividend 2. Tap the estimated quotient Great Job!
{{ balloon.val }}
🎉
⚖️

Stamp the Fact

Use estimation to decide if the exact answer is reasonable or way off.

Equation {{step4.currentCard + 1}} of {{step4.cards.length}}
{{ step4.stamp === 'reasonable' ? '✅' : '❌' }}
🏆

All Checked!

🌟

Master Estimator!

You used friendly numbers to estimate products and quotients like a pro!