Symbols
Если ★ = 2 и ▲ = 3, что равно ★ + ▲?
5
Solve: x+5=10x + 5 = 10
x = 5
A car travels 60 km in 2 hours. Speed?
30 km/h
If А bigger than В. В bigger than С. which one is small?
if A > B > C, so C — small
LCM of 2 and 3
→ 6
If ☀ = 4, ☁ = 6, what is ☀ × ☁?
24
Solve: 2x−3=72x - 3 = 7
x = 5
A train covers 120 km in 3 hours. Speed?
→ 40 km/h
If today is Monday, what day will it be 15 days later?
15 ÷ 7 = 2 remainder 1. So it will be 1 day after Monday → Tuesday.
LCM of 4 and 6
12
Если □=−7, ∘=3, найди ∣□∣−∘.
4
3x+4=193x + 4 = 19
x = 5
A bus covers 150 km in 5 hours. Speed?
→ 30 km/h
Which number does not belong in the series: 3, 6, 9, 12, 15, 20?
Answer: B) 20
All numbers are multiples of 3 except 20.
LCM of 8 and 12 →
→ 24
3♣−2♠=7, ♣+♠=11.
Найди ♣ и ♠
♣=9, ♠==2
5x−2=3x+65x - 2 = 3x + 6
x = 4
A cyclist covers 90 km in 3 hours. Speed?
→ 30 km/h
A train leaves at 8:00 AM and arrives at 12:00 PM. Another train leaves at 9:00 AM and arrives at 1:00 PM. Both trains travel at constant speed. Which train is faster?
Both are equal
Both take 4 hours, so speeds are equal.
LCM of 9 and 15 →
45
If ⋄ = 2 and ♡ = 3, find (⋄ + ♡)² − ⋄².”
12
2(x−3)+4=3x2(x - 3) + 4 = 3x
x = 2
A plane covers 600 km in 2 hours. Speed? →
Speed? → 300 km/h
If all students in a group speak in either English or French, 12 speak English ,8 speak French and 5 speak both languages,how many students era there in total in the group?
Answer;15
12+8=20, 20-5 → 15 всего.
LCM of 18 and 24
72