Printable addition worksheets within 1000 – grade 7 (hard) worksheet for kids. Free PDF download and answer key included.
456 + 234 = ______
789 + 123 = ______
345 + 678 = ______
234 + 567 = ______
678 + 234 = ______
123 + 891 = ______
456 + 345 = ______
789 + 12 = ______
345 + 678 = ______
567 + 234 = ______