Page 16 - Maths Skill - 6

14 Maths

Exercise 1.1

1. Write the rule of the patterns and fill in the missing numbers in each of the following.

(a) 1, 2, 3, 5, 8, 13, , , Rule: ______________

(b) 30, 35, 33, 38, , , Rule: ______________

(c) 122, 120, 115, 113, 108, 106, , , Rule: ______________

(d) 4, 12, 36, 108, , , Rule: ______________
2. Fill in the blanks to complete the following patterns.

(a) 1 + 2 = 3 (b) 111 ÷ 3 = 37

1 + 2 + 3 = 6 222 ÷ 6 = 37

1 + 2 + 3 + 4 = 10 333 ÷ 9 = 37

1 + 2 + 3 + 4 + 5 = _____ 444 ÷ ___ = 37

1 + 2 + 3 + 4 + 5 + 6 = _____ 555 ÷ ___ = ___
1 + 2 + 3 + 4 + 5 + 6 + _____ = _____ ___ ÷ 18 = 37

: Hints: Last number × Consecutive number D
2
3. Study the pattern and find the missing term.

(a) (b) (c)
16 10 1 4 3 2

8 2 5 2 2 3 9 5 4 7 5 3

18 ? 2 14 5 ? 13 6 4 9 ? 3

9 7 6 7 5 8

4. Study the pattern and fill in the circles.
(a) (b) (c) (d)

12 6 12 4
5 7 9 8 16 2 3 4 2 2 3
2 3 4 5 3 5 7 9 1 2 1 3
1 2 3 4 5