Question

Which of the following number sentences is an example of the commutative property? Select all that apply.

1.9 × 1 = 1 × 1.9
14.7 + 2.8 = 2.8 + 14.7
2.5 × (3.4 × 1.4) = (2.5 × 3.4) × 1.4
4.5 × 5.5 = 12.375 × 2

Answer 1

(1.9 • 1 = 1 • 1.9; 14.7 + 2.8 = 2.8 + 14.7)

Answer 2

the first two (1.9 • 1 = 1 • 1.9; 14.7 + 2.8 = 2.8 + 14.7)