Mental Math
Place Value and Rounding
Fractions
Decimals
Expressions
100
What is 714-18
694
100
20
What is 17 rounded to the nearest ten?
100
What is one half of six?
3
100
What is .5 + .5?
1
100
How do you write 3 plus a number?
3 + x or x + 3
200
What is 6 x 20?
120
200
What is 51.1 rounded to the nearest WHOLE number?
51
200
What is 1/4 + 1/4?
2/4 or 1/2
200
What is .35 + .20?
.55
200
How do you write nine less than a number
x - 9
300
What is 11 x 12?
132
300
What is 24.65 rounded to the nearest tenth?
24.7
300
What is 3/4 x 3?
9/4 or 2 1/4
300
What is .6 x .35
.21
300
Write an expression if Tony eats four times as much watermelon as Celeste.
4w
400
What is 2848 ÷ 4
712
400
How many tens are in 224?
22
400
How many sixteenths are in 3/4s?
12
400
What is 3.43 + 4.2
7.63
400
Write an expression if Dante buys toy dinosaurs for .92 cents each and he spends 1.55 on gum.
.92d + 1.55
500
What is 59 x 19
1121
500
What is 199.84 rounded to the nearest one?
200
500
What is 1/5 + 4/6?
26/30 = 13/15
500
What is 192.57 + 3.42
195.99
500
Write an expression for the AVERAGE number of pacers the students ran: Makayla ran 49 pacers Karly ran 53 pacers Kasandra ran 54 pacers Zoe ran p pacers
(49 + 53 + 54 + p) ÷ 4