8. Write an equation for each of the tables and use it to help you fill in the gaps. For example: Table A: Let the numbers in Column A be represented by y. We multiply each number by 2 to get the numbers in Column B. So the equation will read


y × 2 = Column B or for the first number, 1 × 2 = 2.


a) Table A


12 24 3 4


510 10 12 15 20


100 b) Table B


15 210 3 4


10 13 65 18 20 35 50


Solving One-step Equations


1. Solve these equations. a) 56 + a = 132


b) x ÷ 5 = 17 c) 328 – b = 120


2. For each of the following buses, write an equation to calculate how many people were on the bus before the first stop.


a) Green bus At the first stop, 7 people got on and then there were 42. How many people were there at first?


c) Yellow bus At the first stop, the number doubled and then there were 86. How many people were there at first?


108 Equations


b) Blue bus At the first stop, 12 people got off and then there were 61. How many were there at first?


d) Red bus At the first stop, the number halved and then there were 34. How many people were there at first?


c) Table C


116 2 3


419 5


20 25 40 60


100 d) Table D


176 2 3 4


580 15 35 50 75


150


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