The answer is 623. Simply add up all of the numbers arithmetically like you would for two plus two. To make sure the answer is correct, check your work using a calculator.
It is: 47+52+63+66 = 228/4 => 57 which is the average mean
26
96
66 times 6 equals 396.
144
144
66 plus 66 equals 132
If I am correct, 9 plus 7 equals 112.
144, you add the plus numbers, then multiply it by the first.
144, you add the plus numbers, then multiply it by the first.
144 add the two numbers and multiply by the first 2(2 + 3) = 10 7(7 + 2) = 63 etc.
This or a similar question has already been answered. 2_plus_3_equals_10_7_plus_2_equals_63_6_plus_5_equals_66_8_plus_4_equals_96_then_9_plus_7_equals_what144.