MENTAL MATH JEOPARDY!

Addition

100

MENTAL MATH 

100 + 455

555

200

Sarita has 149 books. Sam has 218 books. How many books do they have together?

367 books 

300

1998 + 1991 

3989

400

MENTAL MATH 

The addition of 1111 and 111 gives

1222

500

MENTAL MATH
 0110 + 0101

211

Multiplication

100

MENTAL MATH 

5 x 20 

100

200

Subtraction of 10 from -10 gives?

0 

300

MENTAL MATH 

75 X 5 

375

400

MENTAL MATH 

150 x 8

1200

500

Write 5 x 4 in repeated addition form:

5 + 5 + 5 + 5