one hundred fifty-four. 155. one hundred fifty-five. 156. one hundred fifty-six. 157. one hundred fifty-seven. 158. one hundred fifty-eight. Ian Pulizzotto. When multiplying by a power of 10 (such as 10, 100, 1000, etc), move the decimal point the same number of places to the right as there are zeros in the power of 10. When dividing by a power of 10, move the decimal point the same number of places to the left as there are zeros in the power of 10. Have a blessed, wonderful new year! How many times does he need the digit 7?" My answer is: 07 17 27 37 47 57 67 77 87 97. Number 7 will appear 11 times. However, the book's answer on the back is: 20 times Can you explain why?? If you place $0,2,4,6,$ or $8$ in the units place, it becomes even. Hence, you will have to place $1,3,5,7,$ or $9$ in the units place to make it odd. So in the units place, you have $5$ choices. In the thousand's place we have $8$ choices ($8$ because we have left out $0$ and the number in the units place). Numbers 1 to 1000 - free to print Maths Resources at Project HappyChild, linking children all across the world. 20,000 free worksheets - maths, languages, reading Just as there are 1,000 millions in a billion, there are 1,000 billions in a trillion. 1,000,000,000 * 1,000 = 1,000,000,000,000. That’s a lot of zeroes! There are nine zeroes in a billion (or three groups of three zeroes). There are 12 zeroes in a trillion (or four groups of three zeroes). The first number in this range divisible by 9 is 9 itself9 = 1 x 9 The last number in the range is 999 = 111 x 9 So there are 111 numbers between 1 and 1000 that are divisible by 9. How many multiples of 9 are there between 100 and 1000? How can you add eight 8's to get the number 1,000? In a certain country ½ of 5 = 3. If the same proportion holds, what is the value of 1/3 of 10 ? How many 9′s Number that are multiples of 2 = 1000 ÷ 2 = 500. 500 of the number are multiples of 2. Total numbers that are multiples of 9. Numbers that are multiples of 9 = 1000 ÷ 9 = 111 R 1. 111 of the numbers are multiples of 9. Of the 111 numbers that are multiples of 9, half of the numbers are even and had been included in multiples of 2. 111 ÷ 2 2DPm2.

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