### First grade

1-Digit Numbers

problem 45: How many coal mines does our community have?

### second grade

1-Digit Numbers

problem 45: How many coal mines does our community have?

### third GRADE

1-Digit Numbers

problem 45: How many coal mines does our community have?

4-Digit Numbers

problem 51: Solar power at Vanderburgh Public Library

### fourth grade

1-Digit Numbers

problem 45: How many coal mines does our community have?

3-Digit Numbers

problem 46: What state produces the most coal?

4-Digit Numbers

problem 51: Solar power at Vanderburgh Public Library

### fifth GRADE

3-Digit Numbers

problem 46: What state produces the most coal?

4-Digit Numbers