11 out of 7 have () 1 out of 7, 16 have () 1 out of 7, 16 have () 1 out of 5 are () and ()
11 out of 11 out of 7, 112 out of 16, 80 out of 16, 5 out of 15 and 5 out of 5
Simple calculation of 32 times 58 minus 49 times 32 plus 32=
32*58-49*32+32=(58-49+1)*32=10*32=320
68 times 42 plus 32 times 58, how to calculate with simple method?
68*42+32*58
=(32+42)58+42*10
=74*58+420
=4712