Percent Models 2 and 3

What percent of 120 is 48? Put GFC of 120 and 48 in boxes

Greatest Common Factor How to find GFC Greatest Common Factor 120 and 48 48? 120 divided by 48 = 2.5 120 divided by 24 = 5 24? YES!

What percent of 120 is 48? 40% Make a bar model with GFC in boxes 24 24 x 2 = 48

What percent of 95 is 19? Put GFC of 19 and 95 in boxes

Greatest Common Factor How to find GFC Greatest Common Factor 95 and 19 95 divided by 19 = 5 YES!

What percent of 95 is 19? Make a bar model with GFC in boxes 19 1 5 = 20% 19 x 1 = 19

What percent of 80 is 60? Put GFC of 80 and 60 in boxes

Greatest Common Factor How to find GFC Greatest Common Factor 80 and 60 60? 80 divided by 60 = 1.3 20? 80 divided by 20 = 4 YES!

What percent of 80 is 60? Make a bar model with GFC in boxes 20 3 4 = 75% 20 x 3 = 60

The known part goes in boxes 12 is 10% of what number? The known part goes in boxes

12 is 10% of what number? Make a bar model with the known part in boxes 12 12 x 10 = 120

The known part goes in boxes 45 is 15% of what number? The known part goes in boxes

45 is 15% of what number? Make a bar model with the known part in boxes 45 45 45 45 45 45 45 15% 30% 45% 60% 75% 105% 90%

How to allow for extra 5% 15 45 15 5% 5%

45 is 15% of what number? 45 45 45 45 45 45 45 5% 5% 90% = 100%

45 is 15% of what number? 45 45 45 45 45 45 45 6 x 45 + 2 x 15 = 300

The known part goes in boxes 30 is 25% of what number? The known part goes in boxes

30 is 25% of what number? Make a bar model with the known part in boxes 30 4 x 30 = 120