Math riddles
It starts with G and ends with H and is a pictorial representation of mathematical data. What is it?
Graph
Convert 123 l to ml?
123,000 ml
Ellen went to the garage sale to buy chairs. Each chair cost 15 dollars. How much money did Ellen spend on the 12 chairs she bought?
15 x 12 = 180
She paid 180 dollars.
What is 100 more than 250?
350
Convert to a mixed number
10 over 3
3 1/3
When Miguel was 6 years old, his little sister, Leila, was half his age. If Miguel is 40 years old today, how old is Leila?
She is 37 years old
Convert 1.4 kg to g
1,400 g
Tom’s Pizza House had 240 kilograms of flour in their storage room. They used up to 50 kilograms of flour to bake 100 pizzas yesterday. How many kilograms of flour was left in storage?
240 – 50 = 190
190 kilograms of flour were left in storage.
Which of these is closest to 138?
63 + 72
56 + 80
56 + 80 = 136
63 + 72 = 135
Convert mixed numbers to improper fraction
3 1/3
10 / 3
I am a three-digit number. My second digit is 4 times bigger than the third digit. My first digit is 3 less than my second digit. Who am I?
141
Convert 150 ml
0.15 l
Mrs. Thomas has 289 red and 216 white roses in her flower shop. She took 55 red roses home to decorate her house. How many red roses were left at her flower shop?
289 – 55 = 234
There were 234 red roses left at the flower shop.
If you had to round these amounts to the nearest ten to estimate the total of all the items, what would the total be?
$45 $78 $24 $97
50 + 80 + 20 + 100 = 250
5 1/3 + 2/3
6
If you multiply this number by any other number, the answer will always be the same. What number is this?
Zero
Convert 30 mm to cm
3 cm
An oil can holds 5 l of oil. How much oil is left in the can if 2 l 750 ml of oil is used?
2 l 250 ml
What is the largest odd number that can be made from three of these numbers?
4 8 9 1
981
7 2/3 + 7 2/3
15 1/3
If two is a twin and three is a triplet. What are 4 and 5?
9
Convert 8.61 kg to g?
8,610 g
Alyssa had 129 cookies. Aiyanna has 140 cookies and 34 crackers. How many more cookies does Aiyanna have than Alyssa?
140 – 129 = 11
She has 11 more cookies.
What is the rule in this number sequence?
225 240 255 270
+15
Find one equivalent fraction of 1/2
1/2, 2/4, 3/6, 4/8, 5/10, 6/12, 7/14, 8/16, 9/18, 10/20, 11/22, 12/24, 13/26, 14/28, 15/30, 16/32, 17/34, 18/36, 19/38, 20/40