PDF Common Core Math Worksheets - Fourth Grade 1. 54 is 6 times as many as 9. ________________ 2. 5 groups of 8 is equal to 40. ________________ 3. 6 groups of 7 items is the same as 42 items. ________________ 4. The product of 9 and 4 is 36. ________________ 5. 5 multiplied by 9 is 45. ________________ 6. 35 is 5 times as many as 7. ________________ 7.