92 x ( 5 + 7 ) = 92 x 5 + 92 x 7
= 460 + 644
=1104
92 x (5 + 7) = 92 x 5 + 92 x 7
= 460 + 644
= 1104
**** cho mình nha
dien so thich hop vao cac chu cai :
ab x5 = 1ab
GIup em voi chu so thich hop de dien vao o trong de 6 .......8<638 la so nao vay em gap lam
1.gia tri cua chu so 2 trong 27934 la
2. mua 28 hop sua duoc sep vao 7 vi vay mua 9 vi nhu the thi co so hop la
3.hinh vuong co canh 7 cm chu vi hinh vuong la
Thay vao X va Y trong so 20XY chu so thich hop de duoc so vua chia het cho 2 vua chia het cho 5 va 3
dien dau thich hop vao cho cham :
a7 + 8b .......... ab + 78
dien chu so thich hop
a/??+??=?97
b/92.??=???
c/3??:?3=3?
thay cac chu bang nhung so thich hop:
a x b x ab = bbb
ban hay tim so thich hop dien vao dau cham hoi nhe!
1,4,9,?,25,36,49,64,81
biet a va b la so co mot chu so la so chan ay dien so thich hop vao bang sau
8=3/3 7=b/b
