Find the following values without a calculator.
Give your answers in this manner. (Eg 1, 2, 3, 4)
- 242565 = 200000 + _____ + 500 + 65
- 117116 = _____ + 10000 + 7000 + 100 + 10 + 6
- 791117 = 700000 + 90000 + _____ + 100 + 10 + 7
- 122572 = 100000 + 20000 + 2000 + _____ + 70 + 2
(a)
242565 = 200000 + _____ + 500 + 65
242565 = 200000 + _____ + 565
242565 - 200000 - 565 = 42000
(b)
117116 = _____ + 10000 + 7000 + 100 + 10 + 6
117116 = _____ + 17116
117116 - 17116 = 100000
(c)
791117 = 700000 + 90000 + _____ + 100 + 10 + 7
791117 = 790000 + _____ + 117
791117 - 790000 - 117 = 1000
(d)
122572 = 100000 + 20000 + 2000 + _____ + 70 + 2
122572 = 122000 + _____ + 72
122572 - 122000 - 72 = 500
Answer(s): 42000, 100000, 1000, 500