Show:
Mental Math
Multiplication and addition
Multiplication
2x2 multiplication
2x3 multiplication
100
What is 2,000 x 2,000? Use Mental Math!
40,000
100
What is 8x3 + 5x6 = _____
54
100
What is 1x4?
4
100

What is 11x11?

121

100
What is 111x11?
1,221
200
What is 200 x 30? Use Mental Math!
6,000
200
What is 5x3+3x9+4x5=
42
200
What is 3x2
6
200
What is 21x11?
231
200
What is 123x45?
5,535
300
What is 300 x 300? Use MENTAL MATH!
90,000
300
What is 4x9 + 4x3 + 9x9 + 6x9=
185
300
What is 7x5?
35
300
What is 45x23?
835
300
What is 389x84?
31,576
400
What is 40,000 x 40,000? Use MENTAL MATH!
1,600,000,000
400
What is 1x4 + 2x4 + 5x9 + 6x7 + 6x7 =
150
400
What is 3x4?
12
400
What is 49x67?
3,283
400
What is 222x22?
4,884
500
What is 100,000 x 400,000? Use MENTAL MATH!
40,000,000,000
500

What is CHALLENGE: 1x9 +2x9+ 3x9 +4x9+ 5x9+ 6x9 + 7x9+ 8x9 +9x9 + 10x9 =

495

500
What is 4x9?
36
500
What is 99x99?
9,701
500
What is 999x99?
98,901