1. add all even numbers between 31 and 37.
2. if a 250-l tank is 7/10 full, how much more could it hold.
3. which is larger, 77.7 or 77 7/100?
4. decrease 1 426 231 by 400 000.
5. how many 2-cm cubes could fit into a box with length 8 cm,
width 4 cm and height 10 cm?

1. 32+34+36=102
2. 250/1×7/10=1750/10= 175
250-175= 75 more gallons
3. 77.7, 77 7/100= 77.07 so 77.7 is larger
4. 1,026,231
5. 16 cubes, 4 each way because 8÷2=4 and 4^2 is 16
6 1/4 cubes for 4cm because area of 4cm cube is 16 and area of 10 cm is 100, and 100÷16=6.25 or 6 1/4

The answers are 20,30,80,180,960,890,1230,4560. on the first row