Number Sense
Estimate the sum by rounding to digit of greatest value
56,789 + 14,320 =
70,000
One miles is equal to ___ feet.
5280
two thirds of 18
12
20% of 50
10
-2 + 4 =
2
The value of 2 in 929,087,654,110
20,000,000,000
20 billion
160 mm is equal to ___ cm
16 cm
4/5 divided by 1/10
8
25% of 24
6
-13 + -15 =
-28
Estimated product
5,389 x 2,129
10,000,000
What formula would you use to find the amount of paint needed for a wall?
Area
48 divided by one third
16
35% of 60
21
5 - 9 =
- 4
45.785 rounded to the nearest hundredth
45.79
What is the circumference of a circle if the diameter is 2 inches?
6.28 inches (2x3.14)
one and one third times three and two fifths
four and eight over fifteen
85% of 200
170
-8 - 12 =
-20
Estimated sum after rounding to nearest tenths place
345.782 + 12.429 =
358.2
3 feet - 1 foot 4 inches
1 foot 8 inches
one and one fourth divided by one eighth
10
35% of 300
105
-5 - (-9)=
4