Page 132 - NUMINO Challenge_A1

2 Find how the tens and ones digits move.

1 2 345 6 Direction

Tens Digit 24 40 03 32 24 40 Counterclockwise
30 23 42 04 30 23

Ones Digit 16 21 52 65 16 21 Clockwise
25 56 61 12 25 56

42 1
25 36

3 In each row, the first numbers are 1, 2, 5, 10, 17, etc. Therefore, the added numbers

increase by 1, 3, 5, 7, etc.

Row 1st 2nd 3rd 4th 5th 6th

The First 1 2 5 10 7 26
Card

4 The number of stones in each arrangement increases by 4.

Arrangement 1 2 3 45
14 144 144414444
Rules 1
5 9 13 17
Number of Stones 1
7 8 9 10
Arrangement 6 1 4 (7 1) 1 4 (8 1) 1 4 (9 1) 1 4 (10 1)

Rules 1 4 (6 1)

Number of Stones 21 25 29 33 37

Challenge Yourself

01 Find the pattern unit.

1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th
Shape
Color Purple White White Purple White White Purple White White Purple White

The pattern unit of the shapes is . There are four repeating shapes. When

you divide 25 shapes into groups of 4, 1 shape is left over. Therefore, the 25th shape is

a.

The pattern unit of the colors is purple-white-white. When you divide 25 shapes into

groups of 3, 1 shape is left over. Therefore, the 25th shape is purple.

The 25th shape is .

02 Horizontal: 1, 4, 9, 16, The numbers increase by 3, 5, 7, 9,

Vertical: 1, 2, 5, 10, The numbers increase by 1, 3, 5, 7,

Diagonal: 1, 3, 7, 13, The numbers increase by 2, 4, 6, 8,

27Answer Key