second grade

problem 42: Our nation’s energy sources (number comparison)

problem 47: Energy sources in our state (number comparison)

third GRADE

problem 42: Our nation’s energy sources (number comparison)

problem 42: Our nation’s energy sources (converting percents to fractions)

problem 47: Energy sources in our state (number comparison)

problem 49: Solar energy in our country

fourth GRADE

problem 42: Our nation’s energy sources (converting percents to fractions)

problem 47: Energy sources in our state (convert from percentages to fractions and decimals)

problem 49: Solar energy in our country

fifth GRADE

problem 47: Energy sources in our state (convert from percentages to fractions and decimals)

problem 49: Solar energy in our country