Volume and Decimals
2 ft long x 3 ft wide x 5 ft high =
30 ft3
17 feet long x 5 feet wide =
85 ft2
5.99 - 2.45 =
3.54
4.57 + 3.297 =
7.867
4.56 x 102 =
456
23 ft wide x 45 ft high x 12 ft long =
12,420 ft3
1 and 1/2 feet long x 1 and 1/2 feet wide =
1 and 1/4 ft2
2/3 - 1/6 =
3/6 or 1/2
1/2 + 1/4 =
3/4
438 ÷ 103 =
0.438
18 square ft base, 15 ft height =
270 ft3
25 feet wide x 37 feet long =
925 ft2
2 ÷ 3 =
2/3
2 x 1/5 =
23.98 ÷ 0.1 =
239.8
345.3 ÷ 10 = 34.53
345.3 ÷ 100 = 3.453
345.3 ÷ 1,000 = 0.3453
Describe what is happening to the decimal point.
The decimal point moves one more place to the left each time.
3.5 ft long x 1.5 feet wide =
5.25 ft2
1,134 ÷ 21 =
54
34 x 23 =
782
359.21 ÷ 0.01 =
35,921
345.3 ÷ 10 = 34.53
345.3 ÷ 100 = 3.453
345.3 ÷ 1,000 = 0.3453
Explain why the decimal is moving.
The decimal point moves over one more place value to the left each time because you're dividing the number by 10 times more each time.
1 and 1/3 feet wide x 3 and 1/2 feet long =
4 and 2/3 ft2
27 ÷ 2 =
13.5
457 x 94 =
42,958
12.3456