Sixth Grade Challenging Math

621)
What is the surface area of the following structure made of 5 cubes glued
together? The side of each cube is 1 inch. Only consider the surfaces that are
not glued to another cube.
622) What is the surface area of the following structure made of 8 cubes glued together. The side of each cube is 1 inch. Only consider the surfaces that are exposed.
623) What are all the factors of 124?
624) What three consecutive odd numbers have a product of 15525?
625) Fill in the squares with single digits (1 to 9) so that the sum of the 4 numbers equals to 120.
More challenging math problems for 6th grade: 15 610 1115 1620 2125 2630 3135
3640
4145 4650
5160
6170
7180
8190
