Lesson 7 11+22+33+44+55=165 23+41+74+83+16=237 45+19+32+74+55=225 51+48+76+85+4=264 263+104+321+155=843 94,758+2,847+93,688+9,386+258+3,456=204,388 Lesson 8 The answer for 26. is 1,524 Lesson 9 75+ 75 =150 40+30=70 15+35 =50
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