Problem 1 · 2017 Math Kangaroo
Easy
Arithmetic & Operations
place-value
Which one of the domino pieces A to E has to be placed in between the shown pieces, so that both calculations are correct?
Show answer
Answer: D
Show hints
Hint 1 of 2
Work out 16 - 3 first, then see what the second domino half must equal.
Still stuck? Show hint 2 →
Hint 2 of 2
One half of the new piece must match 16 - 3; the other half must produce 2017.
Show solution
Approach: match each half of the inserted domino to the two required calculations
- The left calculation must equal 16 - 3 = 13, so the touching half must read = 13.
- The right calculation must equal 2017, so the other half must be 2000 + 17.
- Only the piece with = 13 and 2000 + 17 fits both, which is D.
Mark:
· log in to save