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Multiplication by powers of ten – answers

January 15, 2018

Workout:

Question 1:

(a)  100        (b)  1000          (c) 10,000       

(d)  100,000      (e)  1,000,000      (f)  10,000,0000

Question 2:

(a) 40              (b) 9000          (c) 200

(d) 45,000      (e) 825,000     (f) 1900

(g) 8                (h) 530            (i) 115

(j) 218             (k) 0.2             (l) 150

(m) 80            (n) 500,000     (o) 6

(p) 12,800

Question 3

(a) 50,000             (b) 200,000

(c) 3,500,000        (d) 880,000

(e) 2,900,000         (f) 42,000

(g) 150,000            (h) 30,000

(i) 4,820                  (j) 3,000

(k) 0.095                (l) 630,000

(m) 28                    (n) 390.15

(o) 50,600              (p) 10.5

Apply

Question 1:   (a)  15,000           (b) 750

Question 2

  1. Should be 12500 (she’s incorrectly added 3 zeroes)
  2. Should be 200,000 (she’s  divided instead of multiplied)
  3. Should be 13,000 (she’s incorrectly added 4 zeroes)
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