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\n1. 500 + 300 + 400 =   2. 300 + 400 + 500 =   3. 300 + 500 + 400 =   4. 700 + 400 + 600 =   5. 500 + 800 + 400 =   6. 200 + 600 + 900 =   7. 900 + 200 + 200 =   8. 900 + 400 + 700 =   9. 600 + 300 + 500 =   10. 900 + 600 + 500 =   11. 600 + 700 + 300 =   12. 800 + 200 + 400 =   13. 400 + 800 + 900 =   14. 700 + 900 + 900 =   15. 400 + 600 + 800 =   16. 700 + 600 + 400 =   17. 300 + 400 + 100 =   18. 700 + 900 + 500 =    \n19. 100 + 500 + 900 =   20. 600 + 700 + 100 =    \nMental math: adding whole hundreds  \n (3 addends)   \nGrade 4 Addition Worksheet  \nFind the sum.  \n1. 500 + 300 + 400 =  1,200  2. 300 + 400 + 500 =  1,200   \n3. 300 + 500 + 400 =  1,200  4. 700 + 400 + 600 =  1,700   \n5. 500 + 800 + 400 =  1,700  6. 200 + 600 + 900 =  1,700   \n7. 900 + 200 + 200 =  1,300  8. 900 + 400 + 700 =  2,000   \n9. 600 + 300 + 500 =  1,400  10. 900 + 600 + 500 =  2,000   \n11. 600 + 700 + 300 =  1,600  12. 800 + 200 + 400 =  1,400   \n13. 400 + 800 + 900 =  2,100  14. 700 + 900 + 900 =  2,500   \n15. 400 + 600 + 800 =  1,800  16. 700 + 600 + 400 =  1,700   \n17. 300 + 400 + 100 =  800  18. 700 + 900 + 500 =  2,100   \n19. 100 + 500 + 900 =  1,500  20. 600 + 700 + 100 =  1,400","cbCaifoRsAMH6CF6","https://ap.wps.com/l/cbCaifoRsAMH6CF6","pdf",14477,"English","# Mental Math Practice\n## Answer Key","[{\"question\":\"What is the target grade level for this addition worksheet?\",\"answer\":\"The worksheet is designed for Grade 4 students.\"},{\"question\":\"How many numbers are added in each of the problems?\",\"answer\":\"Each problem requires the addition of three addends, all of which are whole hundreds.\"},{\"question\":\"Does the document include a solution guide?\",\"answer\":\"Yes, the document provides an answer key for all twenty problems listed.\"}]","Mental Math: Adding Whole Hundreds - Grade 4 Addition Worksheet | PDF"]