Number Lines
Expanded Form
Short Form
+/- Decimals
Problem Solving
100
0--|--|--|--.4--|--.6--|--*--|--1.0
What is 8 tenths, or 0.8?
100
5.4
What is (5 X 1) + (4 X .1)?
100
7,800,000
What is 7.8 million?
100
0.8 + 0.39
What is 1.19?
100
A peach weighed 142.3 g. Its pit weighed 18.48 g. This amount tells how much its skin and flesh weighed.
What is 142.3 - 18.48 = 123.82; what is 123.82 g?
200
0.4--*--|--|--|--|--|--|--|--|--0.5
What is 41 hundredths (or 0.41)?
200
6.51
What is (6 X 1) + (5 X 0.1) + (1 x0.01)?
200
6,500,000
What is 6.5 million?
200
0.9 + 0.01 + 0.65?
What is 1.56?
200
Carla buys 1.05 kg or organic apples and 0.96 kg of organic oranges. This tell the total mass of the fruit that Carla bought.
What is 1.05 + 0.96 = 2.01; 2.01 g?
300
0.28--|--|--|--|--*--|--|--|--|--0.29
What is 285 thousandths, or 0.285?
300
0.315
What is (3 X 0.1) + (1 X 0.01) + (5 X 0.001)?
300
5,706,000
What is 5.706 million?
300
0.4 - 0.06?
What is 0.34?
300
Kelly bought some fruit. She gave 1.4 kg of peaches to Sam, who gave her 1.15 g of watermelon. Then, she had 3 kg of fruit. This tells the mass of the fruit she started with.
What is 3 - 1.15 + 1.4 = 3.25; 3.25 kg?
400
0.34--|--|--|--|--|--|--*--|--|--0.35
What is 347 thousandths, or 0.347?
400
13.15
What is (1 X 10) + (3 X 10) + (1 X 0.1) + (5 X 0.01)?
400
5,600,000,000
What is 5.6 billion?
400
2.114 + 4 + 1.07
What is 7.184?
400
Barb needs 2 yd of yellow ribbon. She has 0.497 yd. She buys 0.91 yd more. She then buys 0.4 yd. of pink ribbon. This tells how much more yellow ribbon she needs.
0.497 + 0.91 = 1.407 ; 2 - 1.407 = 0.593. What is 0.593 yd more yellow ribbon?
500
0.05 --|--|--|--|--|--*--|--|--|--0.06
What is 56 thousandths, or 0.056?
500
18.001
What is (1 X 10) + (8 X 1) + (1 X 0.001)?
500
1,004,000,000
What is 1.004 billion?
500
72.2 - 36.597
What is 35.603?
500
Terry's organic tomato weighs 0.145 kg more than Nancy's. Together, their tomatoes weigh 3.945 kg. This tells how much Terry's tomato weighs.
What is 2.045 kg?
M
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