Grade 1 · Math · Addition Strategy
Build double 1
Choose the double named in the mission.
Near doubles use a known double to add neighboring numbers. Adjust by one because one addend differs by one.
For 6 + 7, double 6 to get 12, then add 1 to get 13. Or double 7 and subtract 1.
Use the double named by the ramp, then decide whether to add or remove one.
A free Grade 1 math game for practicing near-doubles addition strategy. No account or download is needed.
Learning area: Adding & subtracting · Near-Doubles Strategy.
Difficulty: 2 · Practice within Grade 1. Apply a skill with more choices, larger numbers or extra steps.
Next in this learning areaAddition Race2 · PracticeRead two consecutive addends, choose the named doubles ramp, then add or take away one and land on the total.
Choose an activity that fits your learner. Grade labels are a guide; adults can help with the instructions.
