Question

Estimate the products by rounding up one factor and rounding down the other factor:
10. 45 x 78
11. 82 x 33
13. 43 x 31
15. 563 x 724
17. 231 x 627
10. 45 x 78
12. 67 x 26
14 417 x 126
16. 327 x 168​

Answer 1

Solution: One number is rounded up and the ♥other is rounded down. Here 358 is rounded up to the nearest hundred, i.e., 400 while 326 is ...