Problem Solving Andrew adds two numbers. Each addend has seven digits. The sum has eight digits. What digit is in the ten millions place in the sum? Explain.

30 people weigh 160 pounds or more

eight hundred an fifty one point four hundred and fifteen

800+50+1+.4+.01+.005

emily solved for a part when she should have solved for the whole. 875,000 should be the numerator of the equivalent ratio. 70 x 12,500 is 875,000. so the answer is 100 x 12,500 which is 1,250,000.