Find each of the following products: a) 3 × (-1) b) (-1) × 225 c) (-21) × (-30) d) (-316) × (-1) e) (-15) × 0 × (-18) f) (-12) × (-11) × (10) g) 9 × (-3) × (-6) h) (-18) × (-5) × (-4)

Here are the solutions to the problems.

1. Find each of the following products:

• a) $3 \times (-1)$

  $$3 \times (-1) = -3$$

  The product of a positive and a negative integer is negative.

  $$\boxed{-3}$$

• b) $(-1) \times 225$

  $$(-1) \times 225 = -225$$

  The product of a negative and a positive integer is negative.

  $$\boxed{-225}$$

• c) $(-21) \times (-30)$

  $$(-21) \times (-30) = 630$$

  The product of two negative integers is positive.

  $$\boxed{630}$$

• d) $(-316) \times (-1)$

  $$(-316) \times (-1) = 316$$

  The product of two negative integers is positive.

  $$\boxed{316}$$

• e) $(-15) \times 0 \times (-18)$

  $$(-15) \times 0 \times (-18) = 0$$

  Any number multiplied by zero is zero.

  $$\boxed{0}$$

• f) $(-12) \times (-11) \times (10)$