Ordering 4-digit numbers worksheet with exercises for arranging numbers in ascending and descending order.

To solve the problem, we need to identify which numbers in each set are even and which are odd. Let's break it down step by step.

Part (a): Identify Even and Odd Numbers

#### Set 1:
- Numbers: 32, 45, 68, 79, 90
- Even Numbers: A number is even if it is divisible by 2.
- 32 ÷ 2 = 16 (even)
- 45 ÷ 2 = 22.5 (odd)
- 68 ÷ 2 = 34 (even)
- 79 ÷ 2 = 39.5 (odd)
- 90 ÷ 2 = 45 (even)
- Odd Numbers: The remaining numbers are odd.
- Odd: 45, 79

#### Set 2:
- Numbers: 14, 27, 36, 49, 58
- Even Numbers:
- 14 ÷ 2 = 7 (even)
- 27 ÷ 2 = 13.5 (odd)
- 36 ÷ 2 = 18 (even)
- 49 ÷ 2 = 24.5 (odd)
- 58 ÷ 2 = 29 (even)
- Odd Numbers:
- Odd: 27, 49

#### Set 3:
- Numbers: 51, 64, 77, 82, 95
- Even Numbers:
- 51 ÷ 2 = 25.5 (odd)
- 64 ÷ 2 = 32 (even)
- 77 ÷ 2 = 38.5 (odd)
- 82 ÷ 2 = 41 (even)
- 95 ÷ 2 = 47.5 (odd)
- Odd Numbers:
- Odd: 51, 77, 95

Part (b): Identify Even and Odd Numbers

#### Set 1:
- Numbers: 102, 115, 128, 139, 150
- Even Numbers:
- 102 ÷ 2 = 51 (even)
- 115 ÷ 2 = 57.5 (odd)
- 128 ÷ 2 = 64 (even)
- 139 ÷ 2 = 69.5 (odd)
- 150 ÷ 2 = 75 (even)
- Odd Numbers:
- Odd: 115, 139

#### Set 2:
- Numbers: 144, 157, 166, 179, 190
- Even Numbers:
- 144 ÷ 2 = 72 (even)
- 157 ÷ 2 = 78.5 (odd)
- 166 ÷ 2 = 83 (even)
- 179 ÷ 2 = 89.5 (odd)
- 190 ÷ 2 = 95 (even)
- Odd Numbers:
- Odd: 157, 179

#### Set 3:
- Numbers: 201, 214, 227, 238, 251
- Even Numbers:
- 201 ÷ 2 = 100.5 (odd)
- 214 ÷ 2 = 107 (even)
- 227 ÷ 2 = 113.5 (odd)
- 238 ÷ 2 = 119 (even)
- 251 ÷ 2 = 125.5 (odd)
- Odd Numbers:
- Odd: 201, 227, 251

Final Answer

#### Part (a):
- Set 1: Even: 32, 68, 90; Odd: 45, 79
- Set 2: Even: 14, 36, 58; Odd: 27, 49
- Set 3: Even: 64, 82; Odd: 51, 77, 95

#### Part (b):
- Set 1: Even: 102, 128, 150; Odd: 115, 139
- Set 2: Even: 144, 166, 190; Odd: 157, 179
- Set 3: Even: 214, 238; Odd: 201, 227, 251

\boxed{
\begin{array}{ll}
\text{Part (a)} & \text{Part (b)} \\
\text{Set 1: Even: 32, 68, 90; Odd: 45, 79} & \text{Set 1: Even: 102, 128, 150; Odd: 115, 139} \\
\text{Set 2: Even: 14, 36, 58; Odd: 27, 49} & \text{Set 2: Even: 144, 166, 190; Odd: 157, 179} \\
\text{Set 3: Even: 64, 82; Odd: 51, 77, 95} & \text{Set 3: Even: 214, 238; Odd: 201, 227, 251} \\
\end{array}
}