Math Practice Topic: Estimated Multiplication

Description: Large number multiplication with estimated answers.

Adaptive Learning Progression: The numbers get bigger.

Sample Levels (out of 2)

Estimate the product by rounding numbers to the first digit, and then doing mental multiplication.

1.
95 × 58 ≈
2.
95 × 47 ≈
3.
63 × 41 ≈
4.
56 × 89 ≈

Estimate the product by rounding numbers to the first digit, and then doing mental multiplication.

1.
730 × 37 ≈
2.
394 × 61 ≈
3.
506 × 94 ≈
4.
651 × 34 ≈
5.
284 × 70 ≈
6.
364 × 90 ≈
7.
306 × 64 ≈
8.
542 × 96 ≈

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