Question

U. Fill in the blanks:
11. Ratio of 3 to 5 =
12. If A's age is 'n' years now, 7 years ago A's age was
13.
are quantities whose value do not change always.
14. 17 x
= 34 x 17.
15.
is the addictive identity of whole numbers.
16. Division by
is not defined.
17. The nearest 1000 of 756 is
18.45 = (7 + 8) - 2 =
19. 1248654
1246854 : Compare.
20. The smallest 7 digit number is
III. Say True or False:
21. The total number of 4 digit number is 9000.
22.7 x 20 - 4 = 136.
23. Predecessor of a 3 - digit number is always a 3 or 4- digit number.
24. Both addition and multiplication are associative for whole numbers.
25 10 more to three times c’ is 10c + 3?​

Answer 1

11. 3:5

12. (n-7)years.

13. fixed quantity.

14. 34.

15. 0.

16. zero.

17. 1000.

18. 13.

19. the 4th and 5th digits are interchanged.

20. 10,00,000.

21. True.

22. False.

23. False.

24. False.

25. False.

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