Question 19 of 22intermediate🔍 AnalyzeShort Answer4 marks
Use the signs <, =, > as appropriate to compare the following without actually calculating. Try to reason them out and share in grade. a) 54 + 97 ___ 54 + 90 b) 84 – 68 ___ 90 – 68 c) 76 + 85 ___ 80 + 86 d) 73 – 54 ___ 73 – 56
(a)
Answer
54 + 97 > 54 + 90
(b)
Answer
84 – 68 < 90 – 68
(c)
Answer
76 + 85 < 80 + 86
(d)
Answer
73 – 54 > 73 – 56
Explanation
(a) Since 97 > 90 and we add to the same number 54, the left side is greater. (b) Since 84 < 90 and we subtract the same number 68, the left side is smaller. (c) Both 76 < 80 and 85 < 86, so the right side is greater. (d) Subtracting a smaller number (54) gives a larger result than subtracting a larger number (56).