3. Your students have been working on expanded notation. One example you could give to your students would be:
ООО O
A) 34 = 3.4 x 10 + 1
B) 34 = 4 tens and 3 ones
C) 34 = 1 + 1 + 1 + 10 + 10
D) 34 = 10 + 10 + 10 + 1 + 1 + 1 + 1