By Rebecca Wingard-Nelson
Booklet by way of Wingard-Nelson, Rebecca
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Книга arithmetic for the overseas pupil: arithmetic HL - foreign. .. arithmetic for the overseas pupil: arithmetic HL - overseas Baccalaureate degree Programme Книги Математика Автор: Paul city, John Owen, Robert Haese Год издания: 2004 Формат: pdf Издат. :Haese & Harris courses Страниц: 960 Размер: 9,6 ISBN: 1876543094 Язык: Английский0 (голосов: zero) Оценка:Mathematics for the foreign scholar: arithmetic HL (International Baccalaureate degree Programme) is our interpretation of the recommendations defined within the IBO degree Programme arithmetic HL consultant (first examinations 2006).
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Extra resources for Addition Made Easy (Making Math Easy)
One quarter is 25¢. Now add the 2 dimes. Begin at 25¢ and count up by tens. After 25 is 35, 45. You have 45¢ so far. Now add 3 nickels. Begin at 45 and count by fives. After 45 is 50, 55, 60. You have 60¢ so far. Now add the 6 pennies. Begin at 60 and count by ones. After 60 is 61, 62, 63, 64, 65, 66. You have a total of 66 cents. 39 Adding T o add time values, add minutes to minutes, and hours to hours. 2 hours 22 minutes ϩ 5 hours 10 minutes Write the problem in columns. Line up matching units.
Add the partial sum 6 to the tens. 1,000 2,000 300 500 10 90 ones 6 0 6ϩ0ϭ6 6 10 ϩ 90 106 Add the partial 106 sum 106 to the 300 hundreds. ϩ 500 906 Add the partial 906 sum 906 to the 1,000 thousands. ϩ 2,000 3,906 1,316 ϩ 2,590 = 3,906 33 Rounding to Y hundreds tens ones ou can estimate the answer to an addition problem by rounding each number to the greatest (largest) place value. The greatest place value of the numbers 329 and 674 is the hundreds place. 329 674 When you round to the hundreds place, look at the tens place.
A group of 60 minutes can be regrouped as 1 hour. 60 minutes = 1 hour Write 5 minutes in the the minutes column. Carry the 1 to the hours column. Add hours. 1 2 hours 45 minutes ϩ 8 hours 20 minutes 5 minutes 1 2 hours 45 minutes ϩ 8 hours 20 minutes 11 hours 5 minutes The sum of 2 hours 45 minutes ϩ 8 hours 20 minutes is 11 hours 5 minutes. 41 Addition S ay you have six red shirts and five blue shirts. How many shirts do you have all together? The words “and” and “together” tell you that you should add the number of red shirts and the number of blue shirts.
Addition Made Easy (Making Math Easy) by Rebecca Wingard-Nelson