Page 158 - Math Genius C4

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\\September 30, 2025 9:50 AM Bharat Arora P-9 Reader _________________________ Date: ___________________74

2. Observe the patterns and write the next two steps.

(a) 0 × 9 + 1 = 1 (b) 0 × 9 + 8 = 8

1 × 9 + 2 = 11 9 × 9 + 7 = 88
12 × 9 + 3 = 111 98 × 9 + 6 = 888

123 × 9 + 4 = 1111 987 × 9 + 5 = 8888
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(c) 1 × 8 + 1 = 9 (d) 20000 ÷ 2 = 10000

12 × 8 + 2 = 98 20000 ÷ 20 = 1000
123 × 8 + 3 = 987 20000 ÷ 200 = 100

1234 × 8 + 4 = 9876 ...................................................
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3. Fill in the blanks by observing the patterns:

(a) 5 × 5 = 25 (b) 37 × 3 × 1 = 111

55 × 5 = 275 37 × 3 × 2 = 222
_______ × 5 = 2775 37 × 3 × 3 = ____

5555 × _____ = 27775 37 × 3 × 4 = 444
55555 × 5 = _______ 37 × 3 × ___ = 555

4. Study the pattern and fill in the missing numbers:

(a) (b) (c)
21 15 ? 36
32 48
? 9
12 8
3 8
9 5
5 7

tessellations

We often see designs made from tiles on the walls or floors. In such designs, tiles fit
into each other without leaving any gaps or without overlapping. Such tiling patterns

are called tessellations.

Thus a tessellation is a pattern of geometric shapes that fit together perfectly, or fill

a 2D space without any gaps or overlaps.

156 Mathematics-4