MENTAL MATH Here We Go…

Problem 1 4 ½ + 5 ½

Problem 2 50 x 14

Problem 3 1,524 + 299

Problem 4 6,500 – 200 – 3,000

Problem 5 6 at $4.99

Problem 6 69.25 + 41 ¾ - 10

Problem 7 275 + 50 + 25

Problem 8 9 x 400

Problem 9 21 x 21

Problem 10 247 + 399

Problem 11 (720 ÷ 8) – (140 x 0)

Problem 12 85 + 65 + 35 + 15 + 75 + 25

Problem 13 -4 + (-7) – (+2)

Problem 14 1,000 - 25

Problem 15 0.22 < 1/5 (True or False?)

Problem 16 5 x 54

Problem 17 31 x 4

Problem 18 381 – 120

Problem 19 63 + 72 x 1/3

Convert: 2 hectoliters = __ deciliters Problem 20 Convert: 2 hectoliters = __ deciliters