Rounding/Estimating
Area and Perimeter
Fraction sentence
Decimal to Fraction
Multiplication
100
Round 195 to the nearest hundred
200
100
Find the area of a rectangle with sides of 5 feet and 4 feet
20 feet2
100
What is 1/4 + 1/4 + 1/4?
3/4
100
What is 0.1 as a fraction?
1/10
100
10 X 3
30
200
Round 740,913 to the nearest hundred thousand
700,000
200
Find the perimeter of a rectangle with side length of 12 feet and 4 feet
32 feet
200
What is 2/5 + 2/5 + 1/5?
5/5 or 1
200
What is 0.9 as a fraction?
9/10
200
25 X 3
75
300
Round 919,999 to the nearest hundred thousand
900,000
300
Find the area of a rectangle whose side lengths are 6 inches and 11 inches
66 inches2
300
What is 1/10 + 2/10 + 3/10 + 4/10?
10/10 or 1
300
What is 0.4 as a fraction?
4/10
300
150 X 4
100 X 4 = 400
50 X 4 = 200
600
400
Round 290,613 to the nearest thousand
291,000
400
Find the perimeter of a rectangle with side lengths of 7 feet and 13 feet
40 feet
400
What is 1/3 + 1/3 + 2/3 + 2/3
6/3 or 2
400
What is 0.01 as a fraction?
1/100
400
345 X 5
25 5 X 5 ones
200 5 X 4 tens
1,500 5 X 3 hundreds
1,725
500
Round 1,909,983 to the nearest hundred
1,910,000
500
Find the area and perimeter of a square with a side length of 9 feet
Area: 81 feet2
Perimeter: 36 feet
500
What is 2/5 + 2/5 + 2/5 + 2/5 + 1/5 + 3/5
12/5 or 2 2/5
500
What is 0.75 as a fraction?
75/100
500
26 X 25
130
+520
650