How to calculate (0.98 * 99 + 0.98) / 49 easily? 1、 (0.98 * 99 + 0.98) / 49 2、 10.6 - (6.6 + 0.125 / 12.5%) Can these two problems be calculated simply? If you can, please write down the steps to solve the problem. After all, solving the problem is not the goal, the important thing is to learn how to solve the problem!

How to calculate (0.98 * 99 + 0.98) / 49 easily? 1、 (0.98 * 99 + 0.98) / 49 2、 10.6 - (6.6 + 0.125 / 12.5%) Can these two problems be calculated simply? If you can, please write down the steps to solve the problem. After all, solving the problem is not the goal, the important thing is to learn how to solve the problem!

1、 (0.98 * 99 + 0.98) / 49
=0.98*（99+1）/49
=98/49
=2
2、 10.6 - (6.6 + 0.125 / 12.5%)
=10.6-6.6-0.125/0.125
=4-1
=3

Simple calculation of (98 * 128) / 49

（98*128）/49=（98/49）*128=2*128=256

Find a rule and fill in half, nine fifty-seven, eleven, thirty-three, twenty-three

47 / 65 (multiply the numerator by 2 and add 1, and multiply the denominator by 2 and subtract 1)
Add 3, 6, 12, 24, 48 successively --- add 4, 8, 16, 32, 64 successively to the denominator