This is homework I use for a week long.
Monday- Homework is on Estimating to find the sum of 3 and 4 digit numbers
Tuesday- Homework is on Finding the sum of 3 digit numbers
Wednesday- Homework is on Finding the sum of 4 digit numbers
Thursday- Homework is on Estimating to find the difference of 3 and 4 digit numbers
These homeworks are written exactly how they will see it on their end of the year test (SOL/ EOGs, etc.)
These questions are higher level thinking, and some are where they need to choose multiple answers.
GREAT homework! really gets them thinking and practicing the skills. You could even use these as an assignment or quiz grade, etc.