Multiplication
2x3
6
16÷4
4
1/2+1/2
1
2!
1x2=2
A caterpillar climbs 3 cm up a wall every day but during the night it falls down 2 cm how many days will it take for the caterpillar to climb the 18 cm wall?
16 since after 15 full days it would have climbed 15 cm and on the 16th day, it just has to climb another 3 cm during the day to reach the top.
4x5
20
36÷4
9
2/4+1/4
3/4
4!
1x2x3x4=24
If there are four apples and you take away three, how many do you have?
You took three apples, so you have three!
10x15
150
225÷15
15
3/5+2/10
4/5
6!
1x2x3x4x5x6=720
Which weighs more, 16 ounces of soda or a pound of solid gold?
None! Both weigh the same since 16 ounces is equal to a pound. While the gold seems more expensive it has been given the same weight as the soda.
23x25
575
63972÷3
21324
5 1/3 - 2 11/12
29/12 or 2 5/12
15!
1307674368000
I add six to eleven and get five. Why is this correct?
Tricksy, tricksy! You have to think more broadly. Here’s a hint: Think about the numbers on a clock. When it is 11 a.m., adding six hours makes it 5 p.m.
329x63
20727
23487345÷5
4697469
10 4/6 - 3 5/12
29/4 or 7 1/4
33!
8.6833176e+36
My twin lives at the reverse of my house number. The difference between our house numbers ends in two. What are the lowest possible numbers of our house numbers?
These math riddles aren’t easy to solve! The lowest possible numbers for the houses are 19 and 91. The difference is 72.