Vocabulary:
Solving math problems:
a. Read.
1.
Addition: 
1 + 1 = 2
one plus one equals two
2.
Subtraction:
2 − 1 = 1
two minus one equals one
3.
Multiplication:
2 × 2 = 4
two times two equals four
4.
Division:
4 ÷ 2 = 2
four divided by two equals two
b. Write in words:
1.
12 + 20 = 32
twelve plus twenty equals thirty-two
2.
50 − 10 = 40
fifty minus ten equals forty
3.
10 × 8 = 80
ten times eight equals eighty
4.
30 ÷ 6 = 5
thirty divided by six equals five