A Second Course in the New Mathematics |
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Σελίδα 3
( 1 ) To multiply by 10 , 100 , 1000 , and so on , we move the decimal point of the multiplicand as many places to the right as there are zeros in the multiplier , supplying zeros if necessary . ( 2 ) To divide by 10 , 100 , 1000 , and ...
( 1 ) To multiply by 10 , 100 , 1000 , and so on , we move the decimal point of the multiplicand as many places to the right as there are zeros in the multiplier , supplying zeros if necessary . ( 2 ) To divide by 10 , 100 , 1000 , and ...
Σελίδα 5
Suppose that we wish to multiply some number , for example , 77 , by 50 . Since 50 is į of 100 , then 50 X 77 must be just į as much as 100 x 77 . Hence 77 x 50 = 77 x 100 = 7700 = 3850 . . In the same way 100 3618.4 50 X 36.184 x ...
Suppose that we wish to multiply some number , for example , 77 , by 50 . Since 50 is į of 100 , then 50 X 77 must be just į as much as 100 x 77 . Hence 77 x 50 = 77 x 100 = 7700 = 3850 . . In the same way 100 3618.4 50 X 36.184 x ...
Σελίδα 344
Add 27.8 ; 8.16 ; 51.74 ; 202.14 ; 76 ; 721.03 . 3. Add 21 ; 63 ; 9 ; 52 ; 7. 10. Multiply by : 4. Subtract 60742 11. Multiply 432 by 71 . 21907 12. Multiply 56.12 by 7.3 . 5. 161 – 93 . 13. ( a ) Divide 15111 by 207 . 6. 3.104 2.5 .
Add 27.8 ; 8.16 ; 51.74 ; 202.14 ; 76 ; 721.03 . 3. Add 21 ; 63 ; 9 ; 52 ; 7. 10. Multiply by : 4. Subtract 60742 11. Multiply 432 by 71 . 21907 12. Multiply 56.12 by 7.3 . 5. 161 – 93 . 13. ( a ) Divide 15111 by 207 . 6. 3.104 2.5 .
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Second Course in the New Mathematics Edward Ira Edgerton,Perry Amherst Carpenter Προβολή αποσπασμάτων - 1958 |
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