Mental Math
Mental Math
75- 45
30
9,853 - 3421
6,4321
372 x 64
23,808
478 X 75
35,850
Mental Math
Fiona wants to buy a phone worth $270, but she only has 5 $100 bills How much change will she receive?
230
500 - 250
250
MENTAL MATH
500 x 2 =
1000
572 x 79
45,188
Mental Math
36,000 - 13,000 =
What is 23,000
MENTAL MATH
56 + 30 =
86
80 x 5 = ?
400
39 x 13
507
What place value is the "1" in the number 21,008?
Thousands
10,000 - 5,000
5,000
Mental Math
40 x 7 =
280
1,200 x 5
6,000
99 -56
43
890 - 240
650
2,000 x 20=
40,000
300