a) 94 - 42 = 52b) 30 - 12 = 18, 18 : 3 = 6, 6 + 3 = 9c) 8 • (13 - 7) = 8 • 6 = 48d) 75 + 81 = 156, 156 : 9 = 17.33 (rounded to 2 decimal places)e) 30 - 12 = 18, 3 + 3 = 6, 18 : 6 = 3f) 9 • (14 - 6) = 9 • 8 = 72g) 38 - 64 = -26, -26 : 8 = -3.25h) (30 - 12) : 3 = 6, 6 + 3 = 9i) 7 • (12 - 3) = 7 • 9 = 63
a) 94 - 42 = 52
b) 30 - 12 = 18, 18 : 3 = 6, 6 + 3 = 9
c) 8 • (13 - 7) = 8 • 6 = 48
d) 75 + 81 = 156, 156 : 9 = 17.33 (rounded to 2 decimal places)
e) 30 - 12 = 18, 3 + 3 = 6, 18 : 6 = 3
f) 9 • (14 - 6) = 9 • 8 = 72
g) 38 - 64 = -26, -26 : 8 = -3.25
h) (30 - 12) : 3 = 6, 6 + 3 = 9
i) 7 • (12 - 3) = 7 • 9 = 63