Page 172 - New Medley 4 Semester 2 PDF (Merged)

Patterns in Multiplication and Division

Observe the patterns and fill in the blanks.

1. 1 × 1 = 1 2. 2 × 2 – 1 × 1 = 2 + 1 = 3

11 × 11 = 121 3 × 3 – 2 × 2 = 3 + 2 = 5

111 × 111 = 12321 4 × 4 – 3 × 3 = 4 + 3 = 7

1111 × 1111 = 1234321 5 × 5 – 4 × 4 = 5 + 4 = 9

11111 × 11111 = 6 × 6 – 5 × 5 =

7 × 7 – 6 × 6 =

3. 123 ÷ 3 = 41 = 41 + 0 × 37 4. 111 ÷ 37 = 3

234 ÷ 3 = 78 = 41 + 1 × 37 222 ÷ 37 = 6

345 ÷ 3 = 115 = 41 + 2 × 37 333 ÷ 37 = 9

456 ÷ 3 = 152 = 41 + 3 × 37 444 ÷ 37 = 12
567 ÷ 3 = 189 = 41 + 4 × 37 555 ÷ 37 =

678 ÷ 3 = = 41 + × 37 = 18

789 ÷ 3 = 41 + × 37

Other magic patterns

1
8 1 6 15

3 5 7 15
1 + 6 + 2 = 9 6 5 1 + 5 + 3 = 9
4 9 2 15

2 4 3 15 15
15 15 15

2 + 4 + 3 = 9

EXERCISE 6.4

A. Observe and extend the number patterns.
1. 1234, 2234, 3234, 4234, , , ,

2. 110, 120, 130, 140, , , ,

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