Estimate each product by finding its range.

Question

1. 663x85
2.151x268
3. 92x98

Answer 1

1. The range of 663x85 is estimated to be between 50,000 and 70,000 (663 multiplied by a number between 80 and 90).
2. The range of 151x268 is estimated to be between 40,000 and 50,000 (151 multiplied by a number between 260 and 270).
3. The range of 92x98 is estimated to be between 8,500 and 9,500 (92 multiplied by a number between 90 and 100).