the third term is when n=3 substitute 3 in the place of n ( 5 x 3) - 2 = 13 The third term is 13

The range is the largest value minus the smallest value. In this case: 8 - 1 = 7, so the range is 7. Sometimes, it can be helpful to list the numbers from smallest to largest so that you can make sure you haven’t missed the values that you need by accident :)

when making something the subject you want that “thing” by itself on one side of the equals sign x - 5y = 3v Add 5y x = 3v + 5y

1/3 of an hour is 20 minutes (60/3). Two times that is 40 minutes. Two hours is two times 60 minutes, so 120 minutes. Summing the two parts, we get 120+40 = 160 minutes.

42 / 15 = 2.8 Therefore 2.8 is 1% of the original number 2.8 x 100 = 280

take ‘x’ you are asked to multiply it by 2 giving you ‘2x’ then you are asked to take away 9 Giving you ‘2x-9’ I always substitute a number in to check that the equation works at the end

half of 7 minutes and 24 seconds : It would be much easier to calculate with one unit therefore I am going to convert it into seconds 7 minutes = 420 seconds 7x60= 420 420 + 24 = 444 444/2 = 222 answer = 222 seconds or 3 minutes 42 seconds

(1x1) + 3 = 4 (2x2) + 3 = 7 (3x3) + 3 = 12 4, 7, 12

(1x1) + 3 = 4 (2x2) + 3 = 7 (3x3) + 3 = 12 4, 7, 12