2.6.2 Try some yourself
Activity 6
Read the following expression out aloud or write it out in full in words:
(a) 3 × 4 + 3 × 5 = 3 (4 + 5).
Answer
(a) Three times four, plus three times five equals three times the sum of four and five.
Activity 7
Which mathematical operations are implied by these words when used in a mathematical sense?
(a) Sum
(b) Difference
(c) Product
(d) Quotient
State the operations in both words and symbols.
Answer
(a) Sum implies addition or +.
(b) Difference implies subtraction or −.
(c) Product implies multiplication or ×.
(d) Quotient implies division or ÷.