Learn the math: Factor Pairs within 100
A factor pair contains two whole numbers whose product is a target. A number can have several different factor pairs.
A worked example
The factor pairs of 12 are 1 and 12, 2 and 6, and 3 and 4.
Keep in mind while you play
Multiply the selected numbers; their sum is not the reactor's target relationship.
About Factor Reactor Defense
A free Grade 4 math game for practicing factor pairs within 100. No account or download is needed.
Learning area: Multiplying & dividing · Factor Pairs & Multiples.
Difficulty: 3 · Challenge within Grade 4. Combine ideas, remember more information or solve several steps.
Next in this learning areaTimes-as-Many Mech Arena3 · Challenge→What to do
Read the reactor target. Select two orbiting number crystals whose product equals that target, then watch the linked energy beams power the reactor.
Choose an activity that fits your learner. Grade labels are a guide; adults can help with the instructions.
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