Addition
Subtraction
Before and after
Read the number
5

1+1=

two

5

3-1=

two

5

8

seven, nine

5

10

ten

10

2+4+5=

eleven

10

7-2=

five

10

16

fifteen, seventeen

10

13

thirteen
15

10+20+10=

Forty

15

27-13=

14 fourteen

15

99

ninety-eight, one hundred

15

30

thirty

20

26+47+78=

151 one hundred fifty-one

20

148-63=

85 eighty-five

20

111

one hundred ten, one hundred twelve

20

88

eighty-eight

25

59+25+71+86=

241 two hundred forty-one

25

275-46-16=

213 two hundred thirteen

25

220

two hundred nineteen, two hundred tewnty-one

25

999

nine hundred ninety-nine

M
e
n
u