Use what you know - Teaching Ideas

14. 430 - 150 = 20. 600 – 330 = 15. 360 + 220 = 21. 470 + 460 = 16. 510 - 170 = 22. 920 – 450 = 17. 260 + 240 = 23. 380 + 620 = 18. 720 – 360 = 24. 1000 – 530 = Title: Use what you know Author: NCC (Education Services) Last modified by: Mark Warner Created Date: 8/8/2006 6:32:00 PM Company : NCC (Education Services) ... ................
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