Question

9 x 44
9 x 55
9 x 666 = 5994
9 x 6666 =
9 x 66666 =
25 x 25 = 2 x (2+1) * 100+ 25 = 625
35 x 35= 3 (3+1) * 100+ 25 = 1225
45 x 45=4*(4+1) * 100+ 25 = 2025
nd: 65 x 65 =
95 x 95=
sum by shortcut method:
+9
(b) 375 +99
( 5670-999​

Answer 1

Answer:

b) 375 +99

( 5670-999)

=> 4,62,804