On a morning walk you count 120 butterflies. 40% of the butterflies are white. How many are white?
48 (make it easy...10% = 12, 12 x 4 = 48)
Sam got a 25% discount when he bought a computer game. The original price was £64. How much did he pay?
£48 (make it easy... 1/2 (50%) of 64 = 32. 1/2 of 32 = 16. So, 64 - 16 = 48)
What is 168 ÷ 4
42 (make it easy...68 ÷ 4 = 17, 100 ÷ 4 = 25, 17 + 25 = 42)
Tim has 10 balls in a box. 5 are red, 3 are white, 2 are black. Without looking, what is the percentage of probability that the ball he takes out is black??
20%
15% of the students at Dan´s school travel to school by bus. If there ae 300 students at his school, how many come by bus?
45 (make it easy... 10% of 300 is 30, half of 30 is 15, so 30 + 15 = 45)
In a bunch of 72 flowers, 1/3 are roses. How many roses are there?
24 (make it easy...72÷3 = 24)
One third of a cake is shared between 3 children. What fraction of the whole cake do they each get?
1/9 (make it easy...whole cake ÷ 3, each portion ÷ 3, 3 x 3 = 9)
George has 20 hats. 25% are red. How many are not red?
15 (make it easy... 25% of 20 is 5, so 20 - 5 = 15)
A crocodile has 80 teeth but you can only see 90% of them. How many can you see?
72 (make it easy...10% of 80 is 8. 8 x 9 = 72)
Matthew buys one hotdog for himself and each of his friends. A hotdog costs £2.50. He spends £15.00. How many friends are with him?
5 friends. (make it easy...15 ÷ 2.50 = 6. Minus Matthew´s hotdog = 5)
What is 8.45 + 6.62
15.07
There are 16 pieces of bread in a loaf. John eats 75% of them. How many are left?
4 (make it easy... 75% = 3/4. 1/4 of 16 = 4)
Jake has a coupon for half off the price of headphones. The headphones normally cost £104. How much are they with the coupon?
£52 (make it easy...104 ÷ 2 = 52)
Bill has explored 13 % of the jungle and Laura has explored 54%. What % is left to be expored?
33% (make it easy... 13 + 54 = 67. 100 - 67 = 33)