Question

9. If7+ 2 = 9, 70+ 20 = 90, 700 +
= 900
+ 2000 = 9000
What is the sum of
?
a) 6200 b) 7200
c) 4820
d) 5020
10. The difference between two numbers is 45. The large number is 105. What is the
smaller number?
a) 20
b) 30 c) 60 d) 150
11. What is the difference between the greatest 4-digt odd number and the greatest 4-
digit even number?
a) 0
b) 1000
c) 1
d) 10
12. Which of the following digits doesn't occur in the difference between the successor
of 67854398 and the predecessor of 54677456?
a) 1
b) 3 c) 2. d) 4​

Answer 1

Answer:

Answer:9} 7200

Answer:9} 720010} 60

Answer:9} 720010} 6011} 1

12} 2

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