What operation signs ( +, -, x, : ) must replace Ο and Δ so that the mathematical sentence 2 + 8 + 3 = 2 Ο 8 Δ 3 is correct?
Ο = x; and Δ = -
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Laura went for apple picking. She gave 1/5 of the apples she picked to Lily, and 1/4 to Jim. At the end of the day, she had 22 apples left. How many apples did she pick at first?
40
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The digits 1 to 9 are placed inside the squares in the diagram, with a different digit in each of the boxes. Only the digit 2 is shown. What is the 2-digit number in the first two boxes from the left? A-98, B-86, C-78, D-76
D-76
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Ben played for 10 minutes after reaching home. He watched TV for another 20 minutes before having lunch. His lunch, which lasted for 20 minutes, was finished at 2:50 PM. At what time did Ben reach home?
2 PM
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Choose your answer.
Rainy day dog
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???
10:20 AM
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Find the perimeter and the area of this shape.
42 cm; 65 cm2
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???
162 cm
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Tina creates a new drink by mixing milk and syrup. The ratio of milk to syrup is 3:1. How many liters of milk and syrup does Tina need if she wants to fill a 28l bottle of the new drink?
Milk:28l ; Syrup:7l
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The sum of two natural numbers is 96. If you reduce the first number by 7 times, you get the second number. Find those 2 numbers.
84 and 12
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Tina drinks 1/4 litre of water every day. Her bottle can contain 7/12 litre. How many bottles of water does Tina drink in a week?
3 bottles
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Anna bought 4 pens and 3 notebooks for 54,000 VND. Tina bought 7 pens and 6 notebooks of the same types for 99,000 VND. How much is a pen and a notebook?