66 READING AND WRITING NUMBERS READING AND WRITING NUMBERS Write in figures : 1. Twenty-five; two hundred twenty-five; three hundred fifty. 2. Four hundred two; seventy-three; nine; five hundred sixty. 3. Four hundred twenty; six hundred six; five. 4. Six hundred ninety; ten; three hundred; two hundred four. 5. Two hundred eighty; nineteen; six; one thousand. 6. Copy the following numbers: 13 14 15 16 17 18 19 20 XIII XIV XV XVI XVII XVIII XIX XX 8. Write the Roman numbers for 23, 25, 22, 21, 24. 4. Add 3 to each number above instead of 2; then 4. 6. Add 3 to each number above instead of 2; then 4. 7. Find the sum of: 5 apples and 63 apples 7 cakes and 42 cakes 81 lemons and 7 lemons 24 boys and 5 boys 32 chairs and 6 chairs 47 books and 2 books ADDITION 1. There are 54 houses on one street and 8 on another. How many are there on both streets? 54 houses 8 houses 62 houses Write ones under ones and tens under tens. Add the ones' column. The sum is 12 ones, or 1 ten and 2 ones. Write the 2 under the ones' column and add the 1 ten to the tens' column. 1 ten+5 tens 6 tens. The answer is 62 houses. = The process of uniting two or more numbers to form one number is called addition. The answer in addition is called the sum. 2. A boy spent 25 cents for a book and 8 cents for a pad. How much did he spend for both? 4. A carpenter had 27 men and hired 9 more. How |