**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)**

**(c)**

**(d)**

**(a)**

z+1 z added to 1 (addition)

z-1 1 subtracted from z (subtraction)

y+17 y added to 17 (addition)

y-17 17 subtracted from y (subtraction)

**(b)**

17y 17 multiplied by y (multiplication)

y divided by 17 (division)

5z 5 multiplied by z (multiplication)

**(c)**

2y+17 2 multiplied by y and 17 added to it (multiplication and addition)

2y–17 2 multiplied by y and 17 subtracted from it (multiplication and subtraction)

**(d)**

7m 7 multiplied by m (multiplication)

–7m+3 -7 multiplied by m and 3 added to the product (multiplication and addition)

–7m–3$$ -7 multiplied by m and 3 subtracted from the product (multiplication and subtraction)