integers by sutanggal

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									                                                             INTEGERS

Key Ideas
        + is read plus, the total value of, the sum of, added to
        - is read minus, taken away from, subtracted from, the difference between
        x is read times, multiplied by, the product of
        ÷ is read devide by, the quotient of
        = is read equals, is equals to
        ( is read open bracket
        ) is read closed bracket

Example :
3+4=7                : Three plus four               equals                seven, or
                       Three plus four               is                    equal to seven

     1. 5 + 4 = 9               :....................................................................................................................
     2. 10 + 20 = 30            :....................................................................................................................
     3. 7 – 3 = 4               :....................................................................................................................
     4. 17 – 2 = 15             :....................................................................................................................
     5. 3 x 6 = 18              :....................................................................................................................
     6. 25 x 3 = 75             :....................................................................................................................
     7. 24 ÷ 3 = 8              :....................................................................................................................
     8. 100 ÷ 2 = 50            :....................................................................................................................
     9. 25 + (35 + 38) = (25 + 35) + 38                 :............................................................................................
     10. (4 x 9) x 25 = (4 x 25) x 9                    :............................................................................................

               3 → numerator = pembilang
               8 → denominator = penyebut

I. write the following in number :
a. one over two       (..........)
b. one-half                       (..........)
c. three-quarters     (..........)
d. three over five                (..........)
e. four over seven    (..........)
f. two-thirds                     (..........)
g. five-twelfths      (..........)
h. six-tenths                     (..........)
i. five over eight    (..........)

II. write the following in words :
    a. 5 : ..........................................
        6
    b. 3 : .........................................
       11
    c. 2 : .........................................
        9
    d. 5 : .........................................
        8
    e. 3 : ..........................................
       13
    f. 15 : .........................................
        23
        125
        244
        550 +

First,
    1. Start, from the far right.
       Start from the units place
    2. In the unit place five plus four plus zero equals nine
    3. In the tens place, two plus four plus five equals eleven write only the last digit (1) and carry the
       over 1 to the hundreds place
    4. In the hundreds place, write down the sum of 1 plus one plus two plus five, which equals 9
    5. The sum of 125 and 244 and 550 equals 919

Substraction :
       347
       270 –

   1. Start from the far right/from the units place.
   2. In the units place, 7 minus zero equals 7 write down seven on the units place.
   3. In the ten place, substact 7 from four.
   4. Because seven is greater than 4 borrow 1 from the hundreds place, making it 14.
   5. Then substract 7 from 14. write down 7 in the tens place.
   6. After that, in the hundred place, because we borrowed1 from the top hundreds place, now we
      get 7
   7. Next, 7 minus 2 equals 5. write down 5 in thehundreds place so, the difference between 847
      and 270 is 577.

Multiplication
       2147
           6 x

What is the product 2147 time six.
  1. Start multiplaying from the units place.
  2. In the units place, 7 x 6 = 42 . write two and carry over 4 to the tens place.
  3. In the tens place, 4 times six equals twenty four, then add four to twenty four. The result is 28.
       write only 8 in the ten place carry over 2 to the hundred place.
  4. In the hundreds place, 1 x 6 = 6. add 6 to 2 . making it 8. write down 8 in the hundreds place.
  5. In the thousands place, 2 x 6 = 12. write down 12 in the thousand place.
  6. So, the product of 2,147 and 6 is 12,882

Qoutient
   216
    4

   1.   First, start from the far left, four doesn’t 90 into 2. include 1 in the next digit. So we have 21
   2.   4 goes to 21,5 times and 1 remainder write 5 above 1
   3.   Multiply 5 by 4 and substract the product from 21 write down 1
   4.    bring down 6, making it 16
   5.   4 goes into 16,4 times exactly.
   6.   substract the product of 4 and 4 from 16. and we get no reminder.
   7.   Thus, the quotient of 216 and 4 is 54 (..........)

								
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