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4th grade math · Unit 2: Multiplication

Hard facts from easy ones

What this lesson shows

6 × 7 as 6 × 6 + 6; 9s as tens minus one group; 12s as tens plus twos.

The worked example

The lesson works this one step by step: 6 × 7. Then your kid tries one like it on paper.

The steps

  1. One more group
  2. Nines: ten groups minus one
  3. Twelves: ten groups plus two groups

Helping at home

For each hard fact, ask which easy fact is close: one group less, ten groups, or a square. Build from it out loud. No timer: speed comes after the strategy is sure.

If your kid gets stuck

Which easy fact is close?

Watch it with Lux

With Lux, this lesson is a narrated video and a printed page your kid works on. Then Lux helps with the same math on their own worksheet, one question at a time.

See how Lux works

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