Round Then Add

Round Then Add is a Grade 5 partner game that combines decimal rounding with estimation of sums. Each player builds a decimal from cards and uses the color pattern to determine the place value for rounding. Players who round correctly move to a second phase where both decimals are estimated to the nearest whole number and added.

Use it for partner work when students are connecting rounding with reasonable estimates rather than practicing the skills separately. The two-stage format makes accurate rounding a prerequisite for the estimation challenge. Create a free Find a Math Game account to generate teacher-ready lesson support for Round Then Add. No credit card is required, with 3 lifetime lesson generations.