Mentally determine each answer in two different ways :
a) 3 x 6 + 3 x 4
b) 20(12+10)
c) 5 x 4 x 2
d) 1/2 x 2/3 x 3/4
2006-12-04 08:16:31 · 8 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
solutions:-
a)3*(6+4)=3*10=30 or 18+12=30
b)20*22=440 or 240+200=440
c)20*2=40 or 5*8=40
d)(1/3)*(3/4)=1/4 or (1/2)*(1/2)=1/4
2006-12-04 16:25:20 · answer #1 · answered by arpita 5 · 0⤊ 0⤋
a) 3 x 6 + 3 x 4
b) 20(12+10)
c) 5 x 4 x 2
d) 1/2 x 2/3 x 3/4
2006-12-04 08:19:32 · answer #2 · answered by deathuser94 2 · 1⤊ 1⤋
here are the solutions:-
a)3*(6+4)=3*10=30 or 18+12=30
b)20*22=440 or 240+200=440
c)20*2=40 or 5*8=40
d)(1/3)*(3/4)=1/4 or (1/2)*(1/2)=1/4
2006-12-07 22:15:25 · answer #3 · answered by DHEERAJ KUMAR 2 · 0⤊ 0⤋
a)3*(6+4)=3*10=30 or 18+12=30
b)20*22=440 or 240+200=440
c)20*2=40 or 5*8=40
d)(1/3)*(3/4)=1/4 or (1/2)*(1/2)=1/4
2006-12-04 15:31:27 · answer #4 · answered by Adithya M 2 · 0⤊ 0⤋
a) 3*(6+4) and 18+12 both gives 30
b) 20*(22) and 2*10*(20+2) both give 440
c)5*8 or 4*10 both give 40
d) 0.5*(0.66*0.75) or 50*66*75/(100*100*100)
hope that answers.
2006-12-04 15:00:40 · answer #5 · answered by moksha 2 · 1⤊ 0⤋
How is that a question if we're to do it all in our heads? !
Anyway...
a) 30
b) 440
c) 40
d) 1/4
???
2006-12-04 08:36:14 · answer #6 · answered by joannaserah 6 · 0⤊ 0⤋
a) 18+12 = 30
b) 20(32) = 640
c) 24
d) 0.5 x 0.67 x 0.75
2006-12-04 12:23:15 · answer #7 · answered by KBH 2 · 0⤊ 0⤋
a)1.5
b)24
c)40
d)0.25
2006-12-04 08:30:54 · answer #8 · answered by Anonymous · 0⤊ 0⤋