Workout
Question 1:
(a) 2 × 5 (b) 2² × 3 (c) 2² × 5 (d) 2 × 3²
(e) 2⁴ (f) 2 × 3 × 5 (g) 2² × 5² (h) 2 × 13
(i) 2³ × 3 (j) 3³ (k) 2 × 3 × 7 (l) 3 × 11
(m) 2 × 19 (n) 2⁶
Question 2:
(a) 2² × 3² (b) 2³ × 5 (c) 2² × 7 (d) 2⁴ × 3
(e) 2⁴ × 5 (f) 2³ × 5² (g) 3 × 5² (h) 2⁵
(i) 3 × 5 × 7 (j) 3⁴ (k) 2² × 13 (l) 2 × 11²
(m) 2² × 3³ (n) 2² × 5³
Question 3:
(a) 14 (b) 30 (c) 110 (d) 24
(e) 20 (f) 75 (g) 72 (h) 99
(i) 625 (j) 400 (k) 351 (l) 2023
Question 4:
(a) 2³ × 3² × 5³ (b) 5 × 47 (c) 2³ × 7²
(d) 5 × 11 × 13 (e) 2² × 3 × 37 (f) 2³ × 3² × 11
(g) 3² × 5⁴
Apply
Question 1:
(a) 2³ × 3 (b) 2² × 3² (c) 2² × 3 × 5 (d) 2⁴ × 3
(e) 2³ × 3 × 5 (f) 2² × 3 × 7
Question 2:
(a) 2³ × 3 × 5² (b) 2 × 3 × 5² (c) 2² × 3² × 5²
(d) 2² × 3 × 5² × 11 (e) 2² × 3 × 5³ (f) 2⁵ × 3 × 5²
Question 3:
(a) 6 = 2 × 3 not 3 × 3… so the answer is 2² × 3²
(b) The answer should be in index form 2³ × 3
Question 4:
(a) 2² × 5 × 7²
(b) 5
Question 5:
(a) 2⁵ × 3 × 5
(b) 30
Question 6:
(a) 2 × 3³ × 7²
(b) 28
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