The table shows the heights of Owen, Avery, and Isabella. The average height of three children is 143 cm. The digit in the ones place of Owen's height and the digit in the tens place of Isabella's height are covered by ink blots.
- What is the digit in the ones place of Owen's height?
- What is the digit in the tens place of Isabella's height?
Total height of the three children
= 3 x 143
= 429 cm
Total height of Owen and Avery
= 429 - 137
= 292
292 - 150 - 107
= 35
= 3 tens 5 ones
(a) Digit in the ones place of Owen's height = 5
(b) Digit in the tens place of Isabella's height = 3
Answer(s): (a) 5; (b) 3