maths foundation paper 1

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nu: Add and subtrat interyers! adding: same signs = add absolute valus and use same sign. different signs = greater abscritte value - lesser and use the sign g GAV. (1) 12 + (-7) 12-7-3 2)-3-20) -3 (20) Subtructing and the opposite 05-(-9) 5+9 314 -23 1) Finu HCF and dirik by HCF. a) 4:12 = 1:3 (HCF = 4) Simplify Rutir. 2)-8+ (-10) b) 21:14 = 3:2 (H(F-7) <) 20:15 = 4:3 (HCF = $) 8 + 10 = (18) Fraction of an amirint: 1 ² 9 10 = ² x 10 = 20 I you turn the whole number into a fraction and then multiply. Then divide to make a whole numbe g 24 = mioo 8 8 -9 add and subtract decimals: line up decimals Pura holder sero's add / subtrut 145.6 +3.89 t 4+3 = 7 42+7 = 6 6x424 6x3= 18 final answer: 2418 4 Share in Rudis: 45.60 3.89 49.49 9.67 25.93 Maths Foundation Paper 1 1) add the radio Factorising: put the HCF at the front a brouket. 2) then with that answer find the MCF and` you use it to divide the number your sharing 3) Then you thike that answer and multiply it by each number in rates Example Question! Shure 42 into 4:3 Durde the numbers in equation given by HCF. Example Questions: 1 20x² 18x HCF 2x (6xS) Then you can check your answer by expanding y bricket. cut Reverse Precentages: you find the original cost by dividing your cost given and the percentage giver tis find 1%. thun x 100 to get 100%. Example questions: In a sale all prices reduced by 20%. Zure buys sunglasses for £72 what was oregand price? 100%. = orijinul prece 80%-- 100-20- 80 x 100 . 480 $0.90x100 ·100%....

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