Estimate
Estimate the sum to the nearest 10s place:
$72.95 + $8.26 = ???
$80.00
Solve: 72
49
which is greater:
0.8 or 3/4
0.8
3/4 = 0.75
So 0.8 > 0.75
3 + 5 × 2 =
13
(5 × 2 = 10, then 3 + 10)
How many sides does a pentagon have?
5
Estimate the difference to the nearest 10s place:
$45.08 - $5.98 = ???
$40.00
What is the square root of 81?
9
Gregory has $375. He has 3 times as much money as James. How much money does James have?
$125
(3 + 5) × 2 =
16
(3 + 5 = 8, then 8 × 2)
(−3) x (−11) =
33
Estimate my total grocery bill (to the nearest integer) if I buy:
milk for $5.50
bread for $4.50
peanut butter for 10.95
$22.00
Julie started work at 8:30am and ended work at 4:30pm. She took two 15 minute breaks and a 30 minute lunch. How many hours did she work?
7 hours
Use <,>,or = to compare:
1/2 ___ 8/16
=
(2 + 3)2 =
25
(2 + 3 = 5, then 5² = 25)
Order from least to greatest:
6.010; 6.100; 6.001
6.001; 6.010; 6.100
I only have $30 to spend.
Which item should I remove from my shopping list in order to get closest to to the $30 without going over?
socks $5.95
t-shirt $7.75
flip-flops $9.65
sunscreen $8.50
SOCKS!
Here is the breakdown:
Remove socks ($5.95)
$31.85 – $5.95 = $25.90
Remove t-shirt ($7.75)
$31.85 – $7.75 = $24.10
Remove flip-flops ($9.65)
$31.85 – $9.65 = $22.20
Remove sunscreen ($8.50)
$31.85 – $8.50 = $23.35
Find the difference:
4,589-2,588
2,001
use >, < or = to compare:
4.99 ___ 4.998
4.99 < 4.998
8 + (6 ÷ 2)2 =
17
(6 ÷ 2 = 3, then 3² = 9, then 8 + 9)
1/2 ÷ 1/4 =
2
Here is how we calculate this:
1/2 x 4/1 =
4/2 =
2
Estimate Larry’s final paycheck by rounding to the nearest tens place:
Larry earns $19.50 an hour and works 20 hours a week. He pays 10% in taxes, which will come out of his paycheck before he gets his money. How much will his final paycheck be?
$360
Solve for a
7a - 9a = -20
a = 10
7a - 9a = -20
-2a/-2 = -20/-2
a = 10
Which one is closest to the distance from the earth to the sun?
a) 100 miles
b) 10,000 miles
c) 100 million miles
d) 100 billion
C) 100 million miles
The actual distance between the earth the sun is 93 million miles.
6 + 12 ÷ ( 2 × 2) =
9
2 × 2 = 4
12 ÷ 4 = 3
6 + 3 = 9
What is the area of a square with a side length of 6"?
36 in²