Question

shade in the ten frames to show the number. circle even or odd. 1. 15 2. 18 3. 11 even odd even odd even odd problem solving real world 4. mr. dell has an odd number of sheep and an even number of cows on his farm. circle the choice that could tell about his farm. 9 sheep and 10 cows 10 sheep and 11 cows 8 sheep and 12 cows 5. write two odd numbers and two even numbers. explain how you know which numbers are even and which are odd.

Explanation:

Step1: Determine even - odd for 15

Since 15 is not divisible by 2 (15÷2 = 7.5), it is odd. Shade 15 squares in the ten - frames.

Step2: Determine even - odd for 18

Since 18 is divisible by 2 (18÷2 = 9), it is even. Shade 18 squares in the ten - frames.

Step3: Determine even - odd for 11

Since 11 is not divisible by 2 (11÷2 = 5.5), it is odd. Shade 11 squares in the ten - frames.

Step4: Solve problem 4

We need an odd number of sheep and an even number of cows. For 9 sheep and 10 cows, 9 is odd and 10 is even. For 10 sheep and 11 cows, 10 is even and 11 is odd. For 8 sheep and 12 cows, 8 is even and 12 is even. So the correct choice is 9 sheep and 10 cows.

Step5: Solve problem 5

Two odd numbers: 3 and 7. We know they are odd because 3÷2 = 1.5 and 7÷2 = 3.5, not divisible by 2. Two even numbers: 4 and 6. We know they are even because 4÷2 = 2 and 6÷2 = 3, divisible by 2.

Answer:

1. Shade 15 squares, circle odd.
2. Shade 18 squares, circle even.
3. Shade 11 squares, circle odd.
4. 9 sheep and 10 cows.
5. Odd numbers: 3, 7. Reason: Not divisible by 2. Even numbers: 4, 6. Reason: Divisible by 2.