How it works
This 60 multiplication chart holds 3,600 squares, shown 20 rows and 20 columns at a time. The tinted 60 row is the clock row: 60 × 3 = 180 is the minutes in 3 hours.
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3,600 squares, 1,116 different answers
On a multiplication chart 60 wide, the 3,600 squares hold only 1,116 different answers. Four of them, 120, 180, 240 and 360, fill 14 squares each, and all four sit in the tinted row. 35 answers appear once, every one a square number. Count a fact and its turnaround once and 1,830 facts are left.
Getting around 9 blocks
The chart opens on its last block, rows and columns 41 to 60, where the tinted row ends. The arrows under the chart move one block at a time. To go straight to a fact, type a row and a column under Find a fact and press Go. Try 37 and 52 for 1924.
- The tinted row is the 6 row with a 0 after each answer: 6 × 7 = 42, so 60 × 7 = 420.
- Read the row as a clock: 60 × 8 = 480 minutes in 8 hours, and 60 × 15 = 900 seconds in a quarter hour.
Questions and answers
Why does 60 sit in 12 squares on this chart?
60 has six factor pairs: 1 × 60, 2 × 30, 3 × 20, 4 × 15, 5 × 12 and 6 × 10. Each pair and its turnaround fill 2 squares. That suits a clock: half an hour is 30 minutes.
Can I print the whole 60 by 60 chart on one page?
No. 3,600 squares on one sheet would be too small to read, so this size prints in blocks of 20 rows and 20 columns. Print this part gives the block in view, and Print all 9 pages gives every block.
How do I jump to a fact on the chart?
Type its row and column under Find a fact and press Go. The chart jumps to its block and lights the answer wherever it sits there: 60 and 3 show 180 twice, at 60 × 3 and at 45 × 4.
How much of the chart can I fill in?
One block at a time. Set Show the numbers to Blank for 400 empty boxes. Partly blank hides 100, 200 or 300 of the 400 squares in view. Type your answers, then press Check. Move to another block for a new set.