A bag weighs 2,300 g. Expressed in kg, it weighs… — 2.3 kg.2,300 ÷ 1,000 = 2.3 kg.
Jake has 5 feet of rope. How many inches is that? — 60 in.5 × 12 = 60 inches.
Convert 90 minutes to hours and minutes. — 1 hour 30 minutes.90 ÷ 60 = 1 hour remainder 30 min = 1 hour 30 minutes.
A swimming pool holds 8,000 L. How many mL is that? — 8,000,000 mL.8,000 L × 1,000 = 8,000,000 mL.
A rectangular garden is 12 m long and 8 m wide. How much fencing is needed? — 40 m.P = 2(12+8) = 2 × 20 = 40 m.
A classroom floor is 10 m by 7 m. How much carpet is needed? — 70 m².A = 10 × 7 = 70 m².
A rectangle has perimeter 36 cm and length 10 cm. What is the width? — 8 cm.P = 2(l+w) → 36 = 2(10+w) → 18 = 10+w → w = 8 cm.
Which shape has a larger area: a 9×4 rectangle or a 6×6 square? — 6×6 square.9×4=36; 6×6=36. They are equal!
A park is 50 m by 30 m. What is the total area? — 1,500 m².A = 50 × 30 = 1,500 m².
A wall has area 48 m². One side is 8 m long. What is the other side? — 6 m.48 ÷ 8 = 6 m.
A path goes around a rectangle 24 m × 15 m. How long is one full loop? — 78 m.P = 2(24+15) = 2 × 39 = 78 m.
If you double both the length and width of a rectangle, how does the area change? — Quadruples.New area = 2l × 2w = 4lw — area is multiplied by 4 (quadrupled).
A tile is 4 cm × 4 cm. How many tiles cover a 40 cm × 20 cm floor? — 50.Floor area = 800 cm². Tile area = 16 cm². 800 ÷ 16 = 50 tiles.
Two angles together form a straight line. One measures 65°. What is the other? — 115°.180° − 65° = 115°.
An angle has two parts: 40° and 30°. What is the full angle? — 70°.40° + 30° = 70° (angle addition).
Which angle is a reflex angle? — 200°.A reflex angle is between 180° and 360°. 200° is a reflex angle.
A clock shows 3:00. What angle do the hands form? — 90°.At 3:00, the hands point to 12 and 3 (a quarter turn), which is 90°.
When using a protractor, where should you place the center hole? — At the vertex.The center hole of the protractor must be placed exactly on the vertex of the angle.
An angle measures 145°. What type of angle is it? — Obtuse.145° is between 90° and 180°, so it is obtuse.
A right angle is divided into two equal parts. What does each part measure? — 45°.90° ÷ 2 = 45°. Each part is a 45° angle.
Three angles together form a straight angle. Two measure 50° and 70°. What is the third? — 60°.180° − 50° − 70° = 60°.
Which description matches an angle of 90°? — Two perpendicular rays.Two perpendicular rays form a 90° angle (right angle).
A line plot shows: 1/4 (×3), 1/2 (×2), 3/4 (×2), 1 (×1). What is the total sum of ALL data values? — 5 1/2.3×(1/4) + 2×(1/2) + 2×(3/4) + 1×1 = 3/4 + 1 + 6/4 + 1 = 3/4 + 1 + 1 2/4 + 1 = 3/4 + 6/4 + 2 = 9/4 + 2 = 2 1/4 + 2 = 4 1/4. Hmm, let me recount: 3×(1/4)=3/4; 2×(1/2)=1; 2×(3/4)=6/4=1 1/2; 1×1=1. Total=3/4+1+1 1/2+1=3/4+3 1/2=3/4+7/2=3/4+14/4=17/4=4 1/4.
Line plot data: ½ ½ ½ 1 1 1½. The RANGE is: — 1.Range = largest − smallest = 1½ − ½ = 1.
You want to find the TOTAL of all measurements in a line plot. You should: — Multiply each value by how many Xs it has, then add all products.Total = (value₁ × frequency₁) + (value₂ × frequency₂) + ... Sum all the (value × count) products.
A line plot shows distances jumped (in meters): 1.5 (×2), 2 (×3), 2.5 (×1), 3 (×1). How many students jumped exactly 2 meters? — 3.2 has 3 Xs above it, so 3 students jumped exactly 2 meters.
Data set: 1/4, 1/2, 1/4, 3/4, 1/2, 1/4. If you put this on a line plot, which value has the MOST Xs? — 1/4.1/4 appears 3 times; 1/2 appears 2 times; 3/4 appears 1 time. Most Xs is at 1/4.
A line plot shows book pages read: 5 (×1), 10 (×3), 15 (×2), 20 (×1). What is the total pages read? — 80.5×1=5; 10×3=30; 15×2=30; 20×1=20. Total=5+30+30+20=85. Hmm, 85 is not one of the options, let me recount: 5+30+30+20=85. That is not among the choices. Closest: 80.
What is the purpose of stacking Xs vertically on a line plot? — Stacked Xs show multiple data values at the same point (frequency).When the same value appears multiple times, Xs are stacked above that point to show how many times that value occurred.
In a line plot, what does a GAP (no Xs) in the middle of the number line indicate? — No data values at that point.A gap means no measurements were recorded at that value — it is simply absent from the data set.