Ohio State Math Vocabulary - 4th

3. The result of multiplying two numbers (for example, the product of 7 and 8 is 56).
6. A whole number greater than 1 that has exactly two distinct positive factors: 1 and itself (for example, 2, 3, 5, 7).
9. A number obtained by multiplying a given number by an integer. For example, 12 is a multiple of 3 (because 3 \times 4 = 12).
10. A number that divides another number exactly. If 4 \times 6 = 24, then 4 and 6 are factors of 24.
12. Two fractions that name the same part of a whole (for example, \tfrac{3}{10} is equivalent to \tfrac{30}{100}).
13. A way to write fractions with denominators of 10 or 100 using a decimal point (for example, 0.62 is the same as \tfrac{62}{100}).
14. Writing a number in words (for example, "four thousand three hundred fifty-two").
15. The amount of surface inside a two‑dimensional shape, measured in square units (for example, the area of a rectangle is found by multiplying its length by its width).

1. Showing a number as the sum of the values of each digit (for example, 4{,}352 = 4{,}000 + 300 + 50 + 2).
2. The result of dividing one number by another (for example, the quotient of 84 \div 7 is 12); may include a remainder when the division is not exact.
4. A whole number greater than 1 that has more than two positive factors (for example, 6 is composite because its factors include 1, 2, 3, 6).
5. Replacing a number with another number that tells about how large it is; using place value to make a number simpler (for example, rounding 4{,}367 to the nearest hundred gives 4{,}400).
7. The value of a digit based on its position in a number (ones, tens, hundreds, thousands). Understanding place value helps you read, write, compare and round whole numbers up to 1{,}000{,}000.
8. Writing a number using digits (for example, 4,352). This contrasts with word form or expanded form.
11. A step‑by‑step procedure for solving a problem. In grade 4 math this often refers to standard algorithms for adding, subtracting, multiplying and dividing whole numbers.