22.2 is 28.3% of 78.57
340 is 39.6% of 859
144/300 = 0.48 = 48%
-0.15
35,682 = 36,000 281,035 = 281,000 36,000+281,000 = 317,000
Round your factors to the nearest 10's, 100's 1000's, etc. Then multiply. You should be able solve the problem more or less in you head. If you need to use a pen and paper, you must round to and even higher place. When rounding, if the place your rounding ends in 1-4, you round down. 5-9= round up. For example: 14 rounded to the nearest 10 =10. 16 rounded to the nearest 10=20. 123 rounded to the nearest 100= 100. 191 rounded to the nearest hundred= 200.
340 is 39.6% of 859
2,760/276 = 10 = 1,000%
310 is 88.8% of 349
144/300 = 0.48 = 48%
46.7 divided by 3.15 and round to the nearest tenth
round 53 to the nearest tens place
About half the contestants solve the bonus round puzzle
-0.15
35,682 = 36,000 281,035 = 281,000 36,000+281,000 = 317,000
You look at the first decimal number after the ones place. If it's less than 5, then you leave the percent as it is; but if it's greater than or equal to 5, then you round up. Eg. 56.4% = 56% 56.6% = 57% 4 or below let it go 5 or above give it a shove
Round your factors to the nearest 10's, 100's 1000's, etc. Then multiply. You should be able solve the problem more or less in you head. If you need to use a pen and paper, you must round to and even higher place. When rounding, if the place your rounding ends in 1-4, you round down. 5-9= round up. For example: 14 rounded to the nearest 10 =10. 16 rounded to the nearest 10=20. 123 rounded to the nearest 100= 100. 191 rounded to the nearest hundred= 200.
100, if it was 150 or up, it would be 200