DLO

I added 8 x 9 thats 72 then you add 8 x 70 thats 560

And you add it all together and it look like this 72 + 569 = 632

polluted water

     it went to clean to polluted no one is going  pick it up

DLO

I + 2 in 387 that make 389 and I + 2 in 78 that make 80 and I + 389 - 80 = that make 309 and that your answer

Problem Solving DLO

we are learning to Solve addition problems using different strategies. It was easy because I know the tidy numbers strategy.