Question: KNOWLEDGE/UNDERSTANDING (1). Use number lines to evaluate the following expressions. (2 Marks each) (a). 7 3 / 8 +4 1 / 8 (b). 7 3
KNOWLEDGE/UNDERSTANDING
(1). Use number lines to evaluate the following expressions. (2 Marks each)
(a). 7 3/8+4 1/8
(b). 7 3/8-4 1/8
(c). 6 2/3+5 2 /3
(d). 3 2/5+ 1 4/5
(2) Between which two whole numbers will each sum lie? (2 Marks each)
(a). 4 1/2+ 8 1/6
(b). 33/4 + 6 1/5
(c). 4 1/3+12 5/8
(d). 1 4/5 + 6 2/3
(e). 34 7/10+163/4
(f). 111/2+ 413/5
(3). Evaluate the expressions in question 2
THINKING/INQUIRY.
(1). Determine two mixed numbers, with different denominators, that have the following properties. (2 Marks each)
(a). A sum of34/5
(b). A difference of34/5
(2). A large bottle holds 1 3/4 times the amount of liquid of a small bottle. Determine the number of large bottles that would hold the same amount as 10 1/2small bottles. (3 Marks)
COMMUNICATION
(1). Explain each of the following. You may use diagrams to show your explanations. (2 Marks each)
(a). Why is 3 2/5- 1 4/7the same as 3/7 + 12/5 ?
(b). Why is 3 2/3 - 15/6 the same as 3 5/6 - 2
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