Arithmetic Grade Six
Lesson One Hundred Sixty-five: X Problems One
You probably recall what X Problems look like:
The rule is that you add the two side numbers to get the top number and you
multiply the two side numbers to get the bottom number and so this solution
will fill out the X Problem grid correctly:
When you are missing the right and the bottom slots of the grid you must
first subtract the left number from the top number to get the number which
goes on the right. Once you have the number on the right, you just multiply
the right and the left number and you have the problem finished.
STEP ONE: 13 - 5 = 8
STEP TWO: 8 * 5 = 40
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