Question

for each number below, is it even or odd? your answer

	odd	even
34
143
81
290

Explanation:

Step1: Recall odd - even rule

An even number is divisible by 2, an odd number isn't.

Step2: Check 25

$25\div2 = 12.5$, not divisible by 2, so odd.

Step3: Check 34

$34\div2=17$, divisible by 2, so even.

Step4: Check 143

$143\div2 = 71.5$, not divisible by 2, so odd.

Step5: Check 81

$81\div2=40.5$, not divisible by 2, so odd.

Step6: Check 290

$290\div2 = 145$, divisible by 2, so even.

Answer:

25: Odd
34: Even
143: Odd
81: Odd
290: Even