Out this Sunday, it’s the Ninja Maths December / Week 1 Worksheet, which is all about ESTIMATING.

## Example Questions

**How heavy is a typical cat?** (multiple choice, the answer being 4000g)

**How long is a normal pencil? **(multiple choice, the answer being 15cm)

**Year 4**: 99 x 2 (multiple choice, approximating to 200)

**Year 4**: 11 x 2 x 3 (multiple choice, approximating to 60)

**Year 5**: 8.9 x 11.1 rounding to 9 x 11, which approximates to 100

**Year 6**: (29.1 + 9.8) x (9.9 + 0.123): rounding to (30 + 10) x (10) = which approximates to 400

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