Random
Addition w Regrouping
Trivia
Subtraction No Regrouping
Subtraction Regrouping
100

Is zillion a number?

no

100

36 + 48

84

100

What planet is known as "the red planet"?

Mars

100

812- 711

101

100

453- 348

105

200

How many edges does a cube have?

12

200

26 + 47

73

200

What is the biggest bird in the world?

Ostrich

200

249- 132

117

200

276- 158

118

300

How many is three dozen?

36

300

45 + 36

81

300

How many hearts does an octopus have?

3

300

375- 134

241

300

435-239

200

400

16 + 14

30

400

73 + 29

102

400

What is the fastest land animal?

Cheetah

400

498- 254

244

400

313-162

151

500

How many teeth does an adult human have?

32

500

45 + 59

104

500

What is the only flying mammal?

A bat

500

652- 341

311

500

309

567-258