Thirty-one minus eleven equals twenty.
correct
incorrect
12 + 3 =
five
nine
nineteen
fifteen
Ninety-two minus twenty equals
nine
nineteen
ten
eleven
16 + 4 =
twenty-two
twenty
thirteen
twelve
67-40 =
twelve
twenty-two
twenty-seven
twenty
30 + 12 =
twelve
eight
seventeen
eighteen
45 - 45 =
two
ten
zero
one
Seventeen plus three equals
twenty
fourteen
sixteen
twelve
Twenty-five plus four equals twenty-seven.
incorrect
correct
89 - 52 =
thirteen
three
fourteen
twelve
150 - 50 =
twenty
seventeen
eighteen
nineteen
88 - 11 =
seventy
seventeen
seventy-one
seventy-seven
90+10 =
ten
nine
eight
eleven
100 + 14 =
fourteen
twenty
twelve-four
twenty-four
46 - 34 =
twelve
thirteen
ten
twenty
32 + 42 =
twenty-eight
twenty-six
twenty-five
twenty-seven