8 x 8
60 + 4
70 - 6
128/2
There is no pair of perfect squares that add up to 64.
64 itself is a square. There are no other two squares that add up to 64.
36 and 64
64
64
The GCF is 4.
16 and 64. 16 is 4 squared. 64 is 8 squared.
-8 and -8
36 + 64 = 100 (6x6) + (8x8)
To make the list of two-digit numbers with digits that add up to 10, first write the pairs of single-digit integers that add up to 10. They are (1,9), (2,8), (3,7), (4,6), (5,5). Then recognize that each of these pairs of numbers, except 5, can be combined in two different ways to make two-digit numbers that satisfy the problem. 19 and 91 28 and 82 37 and 73 46 and 64 55 So there are nine two-digit numbers with digits that add up to 10.
92
The cubed numbers up to 100 are: 1, 8, 27, 64.