Poornima: NumberSystem Grade 5, 6, 7

NumberSystem

Grade : 5, 6, 7

1. I am a number between 20 and 30. If you divide 47 and 92 by me, the remainders are 3 and 4, respectively. What number am I ?

2. I am a number between 10 and 20. If you divide 100 or 122 by me, the remainder is 1. What number am I ?

3. I am a number between 13 and 20. If you divide 50 or 98 by me, the remainder is 2. What number am I ?

4. The cost of a notebook is Rs. 39. What does it costs for 7 such books ?

5. In a pair of identical bouquets, the florist placed 39 roses and 11 gladioli in each. How many flowers did he use in all ?

SIMPLIFY .

6. 70 + 2 x 5 + 3 of 10 - 60 ÷ 6

7. 7 + [12 - { 8 +3 - (9 of 6 + 1 -13 x 4)}]

8. 20 - 2(5-4) x { 3 - (5-3)}

9. Which of the numbers are divisible by 3 ? { 813 , 200, 300, 12 }

10.Which of the numbers are divisible by 4 ? { 200, 2300, 34, 124}

1. 22

2. 11

3. 16

4. RS. 273

5. 100

6. 100

7.11

8. 18

9. 813, 300, 12

10. 200, 2300, 124