Today’s number teasers mix patterns, coins, cookies and a calendar question. Everything can be worked out in your head, and a pencil and paper are welcome too. There are eight to solve.
Type your answer in the box using digits.
4, 9, 14, 19, ?
1, 3, 6, 10, 15, ?
1, 2, 4, 7, 11, 16, ?
You baked 30 cookies and gave 5 each to 4 neighbors. How many cookies are left?
You have 2 quarters, 3 dimes and 4 pennies. How many cents do you have in all?
Today is Monday. What day of the week will it be 9 days from now?
What number goes in the blank? 6 × ___ + 4 = 40
Half of a number, plus 10, equals 25. What is the number?
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How to Play
- Read the puzzle and type your answer as digits, such as 24. Words are fine for days of the week.
- Press Check to see if you are right.
- Press Hint for a nudge, or Show Answer to see how it works.
- Your progress is saved on this device.
A Tip for Number Patterns
When a number sequence stumps you, write out the gaps between neighbors. If the gaps are all the same, you are adding the same amount each time. If the gaps themselves grow by one, you have found a classic pattern. This simple trick solves most sequences.