Geometry and algebra

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Across
  1. 2. a ball shape.
  2. 4. the number from which another number, the subtrahend, is to be subtracted.
  3. 5. a flat shape with three straight sides and three angles.
  4. 7. a number to be multiplied by another number, the multiplier.
  5. 8. the amount by which one thing is greater or smaller than another.
  6. 11. having four straight equal sides and 90˚ angles at the corners.
  7. 12. a shape that has four straight sides, two of which are usually longer than the other two, and four 90˚ angles at the corners.
Down
  1. 1. the number you get by multiplying two or more numbers in mathematics.
  2. 2. the number to be subtracted from another number.
  3. 3. Prism prism that the base is a rectangular straight.
  4. 6. When you multiply a number by another number, the second number is the multiplier.
  5. 9. a solid object with six equal square sides.
  6. 10. used to show that one number or quantity is being subtracted from another.
  7. 13. a completely round shape, like the letter O.