Grade 3 math, as an adventure

46 3rd grade topics in six worlds: Egypt and the Nile, Japan, Madagascar, Lapland, Hawaiʻi and The Okavango Delta. In each world, characters guarding eggs ask story problems. Solve them to claim the egg, warm it and hatch a hybrid animal.

The six worlds of Grade 3

• World 1: Egypt and the Nile

  Numbers to 10,000

  Place value to 10,000, odd and even, number patterns, rounding, and adding and subtracting up to 4 digits.

  See topics and a sample problem

• World 2: Japan

  Multiplication & Division

  Equal groups, the times tables to 10 × 10, division with and without remainders, and two-step word problems.

  See topics and a sample problem

• World 3: Madagascar

  Fractions

  Unit fractions, fractions on a number line, equivalent fractions, comparing, and adding related fractions.

  See topics and a sample problem

• World 4: Lapland

  Area, Perimeter & Shapes

  Area in square units and by multiplying, perimeter, right angles, parallel lines and shapes.

  See topics and a sample problem

• World 5: Hawaiʻi

  Measuring & Graphs

  Length, mass and liquid volume in metric units, converting units, and bar graphs and line plots.

  See topics and a sample problem

• World 6: The Okavango Delta

  Time & Money

  Telling time to the minute, how long things take, start and end times, and adding and subtracting money.

  See topics and a sample problem

How a problem works

Problems are read, not raced: there is no timer and no lives to lose. A first wrong answer gets a tip that uses that problem’s own numbers. A second shows the problem worked out step by step. Every wrong answer we plan for is tied to a named mistake, so the grown-ups’ dashboard can show where to help and why.

Other grades: Grade 1 · Grade 2 · Grade 4 · Grade 5 · Grade 6 · Grade 7