The fundamental counting principle states that the number of total options is given by multiplying the number of possibilities for each option, or Total choices = choices x choices x ...
<span>1. 5564÷91 I know that 9 * 6 = 56 5564 rounds to 5600 91 rounds to 9 Since 56/9 = 6, then 5600/90 is the same as 560/9 = 60 The estimate is 60
2. </span><span>5391÷25 5391 sounds to 5400 25 is 1/4 of 100. That means when you divide by 25, you can divide by 100 and multiply by 4. 5400/100 = 54 54 * 4 = 216 Estimate: 216
3. </span><span>explain how to estimate 498÷12 48/12 = 4 498 is little more than 480, so 498/12 is little more than 40
4. </span><span>which is the closest estimate for 2130÷ 33
A.7 B.17 C.70 D.700
2130/33 Round off the numerator and denominator to 2100/30 Reduce the fraction 210/3 Since I know that 21/3 = 7, then 210/3 = 70 Estimate: 70 </span>
