Mental math test

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Guidelines for Mental Math • • • • • • • • to times per week 10 questions each test seconds to answer each question Test is self corrected, results recorded name goes in for a draw (1, 2, chances) If corrected incorrectly no chance to win during the next draw If no red pen, no tickets for that day Strategies used will be discussed Mental Math # 1) 7000 + 300 + 40 + = 2) 9000 + 70 + = 3) 2000 + 50 + 400 + = 4) 50 + 4000 + + 300 = 5) x 1000 + x 100 + x 10 + x = 6) x 100 + x + x 1000 = 7) 50 000 + 3000 + 20 + = 8) 500 + 300 + 40 = 9) 80 + 40 + 20 + = 10) 4000 + 500 + 3000 + 20 = Mental Math # 1) 7000 + 300 + 40 + = 7343 2) 9000 + 70 + = 9073 3) 2000 + 50 + 400 + = 2454 4) 50 + 4000 + + 300 = 4357 5) x 1000 + x 100 + x 10 + x = 5392 6) x 100 + x + x 1000 = 5408 7) 50 000 + 3000 + 20 + = 53 027 8) 500 + 300 + 40 = 840 9) 80 + 40 + 20 + = 142 10) 4000 + 500 + 3000 + 20 = 7520 Mental Math # 1) 500 + 3000 + 70 + = 2) 6000 + 700 + 3) 2000 + 500 + 40 + = 4) 50 000 + 30 + + 8000 = 5) x 10 000 + x 1000 + x 100 + x 10 + x 6) x 1000 + x + x 100 = 7) 200 + 300 + 20 + = 8) 500 + 500 + 400 + 24 = 9) 40 + 60 + 20 + 70 + 30 = 10) 4200 + 500 + 60 = = Mental Math # 1) 500 + 3000 + 70 + = 3573 2) 6000 + 700 + = 6703 3) 2000 + 500 + 40 + = 2544 4) 50 000 + 30 + + 8000 = 58 037 5) x 10 000 + x 1000 + x 100 + x 10 + x 6) x 1000 + x + x 100 = 4502 7) 200 + 300 + 20 + = 525 8) 500 + 500 + 400 + 24 = 1424 9) 40 + 60 + 20 + 70 + 30 = 220 10) 4200 + 500 + 60 = 4760 = 31 923 Mental Math # 1) 90 + 7000 + 500 + = 2) 60 000 + 400 + 20 + = 3) 300 + 700 + 80 + = 4) 50 000 + 30 + + 8000 = 5) x 1000 + x 100 + x 10 + x = 6) x 1000 + x 10 000 + x 100 = 7) 20 + 80 + 30 + + 70 = 8) 900 + 600 + 400 + 72 + 100 = 9) 2000 + 8000 + 700 + 30 = 10) 5100 + 900 + 70 = Mental Math # 1) 90 + 7000 + 500 + = 7596 2) 60 000 + 400 + 20 + = 60 423 3) 300 + 700 + 80 + = 1084 4) 50 000 + 30 + + 8000 = 58 037 5) x 1000 + x 100 + x 10 + x = 3962 6) x 1000 + x 10 000 + x 100 = 24 800 7) 20 + 80 + 30 + + 70 = 205 8) 900 + 600 + 400 + 72 + 100 = 2072 9) 2000 + 8000 + 700 + 30 = 10 730 10) 5100 + 900 + 70 = 6070 Mental Math # 1) 20 + 6000 + 400 + = 2) 50 000 + 9000 + 200 + 30 = 3) 400 + 600 + + 40 = 4) 20 000 + 300 + + 4000 = 5) x 1000 + x 100 + x 10 + x = 6) x 1000 + x 10 000 + x 100 = 7) 50 + 90 + 50 + + 10 = 8) 300 + 600 + 700 + 42 = 9) 4000 + 500 + 500 + 33 = 10) 3700 + 300 + 76 = Mental Math # 1) 20 + 6000 + 400 + = 6427 2) 50 000 + 9000 + 200 + 30 = 59 230 3) 400 + 600 + + 40 = 1043 4) 20 000 + 300 + + 4000 = 24 309 5) x 1000 + x 100 + x 10 + x = 5372 6) x 1000 + x 10 000 + x 100 = 87600 7) 50 + 90 + 50 + + 10 = 205 8) 300 + 600 + 700 + 42 = 1642 9) 4000 + 500 + 500 + 33 = 5033 10) 3700 + 300 + 76 = 4076 5) The diagram best represents what percent shaded? 38%, 50% or 66% 6) The diagram best represents what percent shaded? 33%, 53% or 73% 7) The diagram best represents what percent shaded? 30%, 50% or 70% 8) The diagram best represents what percent shaded? 20%, 40% or 60% 9) The diagram best represents what percent shaded? 25%, 50% or 75% 10) The diagram best represents what percent shaded? 25%, 50% or 75% Mental Math # 15 1) Double the sum of 100 and 150 = 2) x 103 + x 101 = 3) -10 - -2 = 4) You spend $69.90 You have $100.00 What is your change? 5) 50 + 20 000 + 300 = 6) Multiple 100 groups of 3.5 = 7) The quotient of 35 and = 8) Two cubed = 9) 900 ÷ 102 = 10) x 103 = Mental Math # 15 1) Double the sum of 100 and 150 = 500 2) x 103 + x 101 = 7080 3) -10 - -2 = -8 4) You spend $69.90 You have $100.00 What is your change? $30.10 5) 50 + 20 000 + 300 = 20 350 6) Multiple 100 groups of 3.5 = 350 7) The quotient of 35 and = 8) Two cubed = 9) 900 ÷ 102 = 10) x 103 = 8000 1) 2) 3) 4) Mental Math # 16 The difference of 70 and 50 times = x 103 + x 100 = 21.9 + 7.5 = You spend $25.25 You have $100.00 What is your change? 5) 6000 + 70 000 + 49 = 6) Multiple 100 groups of 47 = 7) The quotient of 50 and 10 = 8) Nine squared = 9) 760 ÷ 102 = 10) x 103 = 1) 2) 3) 4) Mental Math # 16 The difference of 70 and 50 times = 40 x 103 + x 100 = 6002 21.9 + 7.5 = 29.4 You spend $25.25 You have $100.00 What is your change? $74.75 5) 6000 + 70 000 + 49 = 76 049 6) Multiple 100 groups of 47 = 4700 7) The quotient of 50 and 10 = 8) Nine squared = 81 9) 760 ÷ 102 = 7.6 10) x 103 = 5000 Mental Math # 17 1) Double 2000 added to 342 = 2) 780 000 in scientific notation = 3) 100.3 x = 4) You spend $50.90 You have $100.00 What is your change? 5) Half of 612 = 6) Multiple 200 groups of 70 = 7) $6.27 x 100 = 8) The sum of ten squared and five squared = 9) 715 ÷ = 10) groups of 102 = Mental Math # 17 1) Double 2000 added to 342 = 4342 2) 780 000 in scientific notation = 7.8 x 105 3) 100.3 x = 200.6 4) You spend $50.90 You have $100.00 What is your change? $49.10 5) Half of 612 = 306 6) Multiple 200 groups of 70 = 14 000 7) $6.27 x 100 = $627 8) The sum of ten squared and five squared = 125 9) 715 ÷ = 143 10) groups of 102 = 800 Mental Math # 18 1) x x = 2) 25 x 22 x = 3) x x 50 = 4) x x = 5) 10 x x x 10 = 6) x 50 x x = 7) x x x = 8) x x x 11 = 9) x x x 20 = 10) x 25 x 50 = Mental Math # 18 1) x x = 80 2) 25 x 22 x = 2200 3) x x 50 = 900 4) x x = 120 5) 10 x x x 10 = 3600 6) x 50 x x = 1400 7) x x x = 180 8) x x x 11 = 440 9) x x x 20 = 2100 10) x 25 x 50 = 2500 Mental Math # 19 1) x 52 x 25 = 2) x x x = 3) x x 50 = 4) x x 500 = 5) 10 x 40 x = 6) 20 x x x = 7) x x x = 8) x x 25 x 11 = 9) x x x 20 = 10) x x x x = Mental Math # 19 1) x 52 x 25 = 5200 2) x x x = 360 3) x x 50 = 300 4) x x 500 = 6000 5) 10 x 40 x = 800 6) 20 x x x = 1400 7) x x x = 180 8) x x 25 x 11 = 2200 9) x x x 20 = 400 10) x x x x = Mental Math # 20 1) x 15 x = 2) x x x = 3) x x 25 x = 4) 50 x x x = 5) 50 x x 12 = 6) x x x = 7) 20 x 13 x = 8) x 25 x 56 = 9) x x 50 x = 10) x x x = Mental Math # 20 1) x 15 x = 180 2) x x x = 150 3) x x 25 x = 2000 4) 50 x x x = 3600 5) 50 x x 12 = 2400 6) x x x = 140 7) 20 x 13 x = 1300 8) x 25 x 56 = 5600 9) x x 50 x = 8100 10) x x x = 240
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