math 4/7

123456
Across
  1. 2. form A way to write numbers that shows the place value of each digit.
  2. 4. to put together smaller numbers to make a larger one
Down
  1. 1. addition, subtraction, multiplication, division
  2. 3. to break down a number into parts
  3. 5. The product of a whole number and any other whole number.
  4. 6. to find the numerical value of an expression or function by substituting