Use your Head Do Mental Math

Aug 18, 2012

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Part I. A Short Math Quiz. Question

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Use your Head Do Mental Math

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1. Use your Head!Do Mental Math Presented by Joe Hill Director of Math and Technology Rockingham County Public Schools

Mental Math Strings

Mental Math Strings. Start with the number of quarts in one gallon. Add the number of sides in a hexagon. Square your result. Subtract the number of degrees in a right angle. Multiply by the number of eggs in one-half dozen.

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Mental Math

Mental Math . A Life Long Skill. A program developed by: Lynn Sinclair Grade 7 Teacher EPEC, Dartmouth, NS lsinclai@staff.ednet.ns.ca 462-8401 Ext: 143.

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Do Now: Mental Math String

Do Now: Mental Math String. Please do the Mental Math String found in your packet Perform all steps mentally, but please write down ONLY your final answer If you finish before we start try making your own string on the blank side of the paper. CITY YEAR CHICAGO. CITY YEAR CHICAGO.

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Mental Math

Mental Math. Strand B Grade Five. Quick Addition – no regrouping. Begin at the front end of the numbers and add. Example: 56 + 23 Think: Add 50 and 20 for 70, then add 6 and 3 for 9– answer 79 Example: 2341 + 3400

1.11k views • 74 slides

Mental Math

Mental Math. 01. (1). 48 + 135=. (2). 1200–1455=1202 – ? . (3). 9 X 7=. (4). 57 – 32=. (5). 122 ÷ 4=. (6). 16 X 15 =. (7). 9 X 6 X 5=. (8). 32 X 25 =. (9). 3 4 =. (10) Estimate. 33% of $25.62. end. Return to Beginning. solutions. (1). 48 + 135=. Think.

406 views • 23 slides

Mental Math

Mental Math. Rounding Numbers to the Nearest Hundred and Thousand. Instructions. First you need a piece of paper and a pencil. Please write your name, date and class at the top. Mental math isn’t about your hand its about your head.

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Extreme Mental Math

Extreme Mental Math. 36. The value of 4 quarters, minus the number of ounces in a pound, divided by 7, times 3. 1. 30. Two dozen, divided by a half dozen, raised to the power of two, divided by 8, times 15. 2. 44.

559 views • 40 slides

Technology - Mental Math

Technology - Mental Math. Exposure to technology Motivation increase Teacher directed Group work Varied skill levels Individual labs Easy review. Mental Math Outcomes and Strategies. 3B6 Add and subtract with and without regrouping - Balancing in subtraction

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Mental Math

Mental Math. 01. (1). 48 + 135=. (2). 17 + 67 =. (3). 8 X 198=. (4). 57 – 32=. (5). 122 ÷ 4=. (6). 16 X 15 =. (7). 32 X 25 =. (8). 57+88=. (9). 8 4 x 6 =. (10). 432 ÷6=. end. Return to Beginning. solutions. (1). 48 + 135=. Think. 50 + 133= 183. Compensation.

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Mental Math

Mental Math. Set 4. Mental Math # 1. ¼ of 20 = ½ of 70 = 2/3 of 18 = 3/5 of 45 = 1/5 x 25 = 1/6 of 30 = ¾ x 16 = 4/5 of 30 = 2/3 of 27 = 5/6 of 36 =. Mental Math # 1. ¼ of 20 = 5 ½ of 70 = 35 2/3 of 18 = 12 3/5 of 45 = 27 1/5 x 25 = 5 1/6 of 30 = 5 ¾ x 16 = 12

1.21k views • 97 slides

MENTAL MATH

MENTAL MATH. MULTIPLYING BY POWERS OF TEN. Strategy : When you multiply any whole number by a power of ten you simply add the number of zeros that the power of ten has to the original number.

1k views • 19 slides

Mental Math

Mental Math. Set 3. Mental Math # 1. 6700 + 208 = 3000 + 700 + 220 = 10.3 + 5.7 + 4.2 = 10.9 – 3.5 = You give $20 for a purchase costing $4.30 What is your change? 550 + 150 + ? = 1000 The sum of two cubed and two squared = 726  6 = 11.5 x 100 = 51.37  10 =. Mental Math # 1.

1.68k views • 81 slides

Mental Math

Mental Math. A Life Long Skill. Mental Math # 1. 7000 + 300 + 40 + 3 = 9000 + 70 + 3 = 2000 + 50 + 400 + 4 = 50 + 4000 + 7 + 300 = 5 x 1000 + 3 x 100 + 9 x 10 + 2 x 1 = 4 x 100 + 8 x 1 + 5 x 1000 = 50 000 + 3000 + 20 + 7 = 500 + 300 + 40 = 80 + 40 + 20 + 2 = 4000 + 500 + 3000 + 20 =.

2.73k views • 233 slides

Mental Math

Mental Math. Strand B – Grade 6. Quick Addition and Subtraction. Use this strategy when no regrouping is needed. Begin the calculation from the front end. Example : 2.327 + 1.441 Think: 2 + 1 = 3, 3 + 4 = 7, 2 + 4 = 6, 7 + 1 = 8 which gives the answer 3.768. Quick Addition and Subtraction.

725 views • 49 slides

Mental Math

Mental Math. A Life Long Skill. Why Mental Math?. Calculating in you head is a practical life skill. Mental math can make written computation easier or quicker Proficiency in mental math contributes to increased skill in estimation

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Mental Math 6

Mental Math 6. Mental Math Routine. Focus on 1-2 strategies each week Practiced 3 to 5 times per week 10 questions with 5-10 seconds to record an answer All tests are is self corrected All results recorded by teacher Name goes in for a draw (1, 2, 3 chances) for a small reward

3.85k views • 332 slides

Using Mental Math

Using Mental Math. Addition. The school store sold 157 pencils last week and 38 pencils this week. Use mental math to find how many pencils were sold in all. Let ’ s use the breaking apart a number method. ?. 157. 38. Let ’ s review the picture above.

244 views • 6 slides

Mental Math Strings

Mental Math Strings. Mentally:. Start with the number of sides in a pentagon. Add the number of sides in a triangle. Divide by the number of sides in an octagon. Multiply by the number of diagonals in a rectangle. Add the minimum number of points needed to determine a line.

311 views • 6 slides

Mental Math

Mental Math. Strand B – Number Sense Grade 2. Addition – Plus 1 Facts. 7+1 or 1+7 is asking for the number after 7. One more than 7 is 8. 7+1=8, 1+7=8. 4 +1 is asking for the number after 4. One more than 4 is 5. 4+1=5. Plus 1 Facts. 2+1= 8+1= 6+1= 9+1= 4+1= 8+1= 5+1= 3+1= 1+1=

1.98k views • 73 slides

Mental Math Competition

Mental Math Competition. Class 2. September 2010. Instructions for the test. There are 15 questions in all. Read them carefully. Each question is of 1 mark. Each of you has been given an answer sheet. Read the question and write only the answer on the answer sheet.

1.7k views • 17 slides

Mental math Progarm

Tinker Thinkers Academy works to unlock your child's full potential through mental math and abacus training. Results: increased concentration power, visualization and imagination, better memory, improved attentiveness, fast information processing, improved listening.

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Use Your Head Around Lead

Use Your Head Around Lead. On-Site Consultation Program. New York State Department of Labor Division of Safety and Health. Class Objectives. To know: What lead is How you may be exposed to it How it affects your health How to reduce your risk and the risk of those around you.

491 views • 48 slides

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