Formatted like a standardized test, this 6 page document tests math skills such as place value, addition, subtraction, rounding, multiplication, division and more. These are approximately the skills tested in third grade, although state standards vary widely. Common Core: 4.NBT.A.3
"Cowboy Jake is afraid of rattlesnakes. He sees a lot of them on the ranch where he lives. In fact, he sees an average of thirty every year. About how many has he seen in the nine years he has lived on the ranch?"
By 10, by 9, by 5, by 3, and by chunks. This unit contains tricks for multiplication and for checking your work. A playful (and very useful) approach to multiplication. This unit is presented at three levels of varying complexity.
Write one factor on the inner circle and other factors on the middle circle. Write the answers on the outer circle. Although designed as a fun drill for multiplication tables, these math circles also work for addition, subtraction, and division problems.