Question

Identify the operations(addition, subtraction, division, multiplication) in forming the following expressions and tell how the expressions have been formed.

(a) z + 1, z – 1, y + 17, y – 17

(b) 17y, y/17, 5z

(c) 2y + 17, 2y – 17

(d) 7m, -7m + 3, -7m – 3

Answer 1

(a) z + 1, z – 1, y + 17, y – 17

Addition as 1 is added to z

Subtraction as 1 is subtracted from z

Addition as 17 is added to y

Subtraction as 17 is subtracted from y

(b) 17y, y/17, 5z

Multiplication as y is multiplied as y is multiplied with 17

Division as y is divided by 17

Multiplication as z is multiplied with 5

Multiplication as z is multiplied with 5

(c) 2y + 17, 2y – 17

Multiplication and addition

y is multiplied with 2, and 17 is added to the result

(d) 7m, -7m + 3, -7m – 3

Multiplication with 2 and 17 is subtracted from the result

Multiplication and subtractions m is multiplied by 7 and 3 is subtracted from the result