What comes after 17?
Look for two alternating operations.
Show solution
Answer: 34. Alternate multiplying by two and subtracting one: 5×2=10, 10−1=9, 9×2=18, 18−1=17. Next is 17×2=34.
Four examples with solutions, separate from the test.
Look for two alternating operations.
Answer: 34. Alternate multiplying by two and subtracting one: 5×2=10, 10−1=9, 9×2=18, 18−1=17. Next is 17×2=34.
Use only these facts.
Answer: No blue tile has a dot.. Every blue tile is square, and all square tiles lack dots. Therefore no blue tile has a dot. Nothing says that every square tile has to be blue.
Mirror the grid left to right.
Answer: Top middle, top right, centre. A left-to-right reflection swaps the left and right columns. Top left becomes top right. Top middle and centre stay in place because they lie on the mirror line.
Every ticket costs the same amount.
Answer: $30. One ticket costs $18÷3=$6. Five tickets therefore cost 5×$6=$30. Work out the price of one ticket first, then multiply.