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