Find the missing number x.
443
432
433
444
Number at the centre of the triangle = sum of lower number - number at top = 4+1 -1 = 4 = 44 + 10 - 11= 43 = 444+100 - 111 =433
Find the missing number: 28 = _____ x 4
Find the missing number: 25 + 25 + 25 = ____ x 25