1) 1.8  ÷ 0.2 = a) 0.9 b) 9 c) 90 2) 670 x 0.01 = ____________ a) 6.7 b) 0.67 c) 0.067 3) 98 ÷ 0.1 = ______ a) 9.8 b) 98 c) 980 4) 0.14 ÷ 0.01 = _______ a) 0.0014 b) 1.4 c) 14 d) 140 5) 20% x 80% = _____% a) 16 b) 1600 c) 0.016 6) 60% x 90%= ___% a) 42 b) 52 c) 54 7) 0.24 ÷ 0.4 = ____ a) 6 b) 0.6 c) 0.06 8) 79 = _______% a) 0.79 b) 7900 c) 79 9) 2.5% = _______ (decimal) a) 2.5 b) 0.25 c) 250 d) 0.025 10) 90 x ( 1+10%) = ______ a) 910 b) 91 c) 99 d) 9.9 11) Mary was 40 kg lastyear. She is 15% lighter than last year. How heavy is Mary this year? a) 40 x 15% b) 40 x ( 1+ 15%) c) 40 x ( 1- 15%) d) 40 - 15% 12) 120 x 25% x 50% = _______ a) 30 b) 15 c) 150 d) 300 13) Adien has $500. He spends 20%. How much is left? a) 500 x 20% b) 500 - 20% c) 500 x (1 - 20%) 14) diameter of a circle is 20 cm. Its area is ________ cm2. a) 1256 b) 3.14 c) 314 15) 80 is ____% 20. a) 4 b) 40 c) 400 d) 0.25 16) 20 is _____% of 80. a) 4 b) 40 c) 0.25 d) 25 17) Capacity of the box is __________ cm3. a) 13 x 10 x 6.5 b) (13 - 0.5 - 0.5) x (10 - 0.5 - 0.5) x (6.5 - 0.5 - 0.5) c) (13 - 0.5 - 0.5) x (10 - 0.5 - 0.5) x (6.5 - 0.5 )

Calculation Practice

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