Page 117 - Start Up Mathematics_5

Let’s Review – 1

I. Choose the correct answer.

1. The place value of 9 in 2,91,04,365 is _______________.
(a) 9,000 (b) 90,000 (c) 9,00,000 (d) 90,00,000

2. 7,98,260 ÷ 1 = ____________

(a) 1 (b) 0 (c) 7,98,260 (d) 79,826
3. The LCM of 8, 36 and 48 is ___________.

(a) 48 (b) 144 (c) 124 (d) 76
6 9 5
4. The value of + – is __________.
11 22 11
1 8 8 5
(a) (b) (c) (d)
2 22 11 11
8 6 75
5. The value of × × is __________.
15 25 24
4 2 5 3
(a) (b) (c) (d)
15 5 12 25
6. The fraction corresponding to 0.0605 is __________.
65 65 605 605
(a) (b) (c) (d)
10000 1000 1000 10000
7. The value of 6.05 + 8.13 – 9.25 is ____________.

(a) 4.93 (b) 5.83 (c) 6.95 (d) 7.48

II. Solve mentally and answer.

1. The difference between the place values of the digit at 6th place and the digit at
3rd place of the largest 7-digit number is __________.
2. The quotient of 7,84,265 ÷ 1,000 is 78. (True/False)

3. Write the factors of 30.
4. The HCF of 54, 186 and 254 is ___________.

7 9 10
5. Simplify: + –
15 15 15
5
3
6. Put the correct sign <, > or = in 6 7 .
7 4
7. Write 3 like decimal numbers.
8. 1 × 2.75 × 6 = ____________

9. 48.63 ÷ 1,000 = ________
10. Arrange in descending order: 0.062, 0.16, 0.681, 0.084, 0.09

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