12x + 32x = ?
(10 seconds to answer)
44x
23x X 14 = ?
(15 seconds to answer)
322x
600x / 40x = ?
(20 seconds to answer)
150
6y - 3= ?(2y - 1)
(15 seconds to answer)
3
57xy + 45x = ?
(10 seconds to answer)
57 + 45x
x + y + 9x = ?
(35 seconds to answer)
10x + y
33x X 21x = ?
(15 seconds to answer)
693x2
555x / 25 = ?
(25 seconds to answer)
22.2x
ab + a = ?(b + 1)
(20 seconds to answer)
a
6y2z / 2y
(15 seconds to answer)
3yz
3ab - 7ab
(10 seconds to answer)
-4ab
12x X 9y X 6y = ?
(30 seconds to answer)
648xy2
-960x / 30xy = ?
(35 seconds to answer)
-32y
2(x + 5) = 2x + ???
(15 seconds to answer)
10
757xy3z + 8621xyz
(15 seconds to answer)
757xy3z + 8621xyz
6m - m2 = ?
(15 seconds to answer)
6m - m2
-143 X 78x = ?
(35 seconds to answer)
-11,154x
-672x / 2y / -30z = ?
(45 seconds to answer)
11.2xyz
2a(a - 3) = ???
(15 seconds to answer)
2a2 - 6a
786yz - (24yz)2 = ?
(25 seconds to answer)
210
46xy - 6y + 7z = ?
(20 seconds to answer)
46xy - 6y + 7z
-403x X 16y X -14z = ?
(45 seconds to answer)
90,272xyz
4200x2 / -7.0y3 / -4z / 5xy = ?
(45 seconds to answer)
30xy2z
-4(2m + 3) = ??? - 12
(20 seconds to answer)
-8m
621xy2 x (6x)2 = ?
(30 seconds to answer + calculator)
22356x2y2