If you already have the LP Bases that you need, the six pack will get you all of the 4th Gr Math curriculum and save you a couple bucks from buying each title individually.

This set includes 144 challenges (12 cards with 12 challenges per card), giving students practice dealing with place value, rounding, adding, and subtracting 4 and 5 digit numbers, understanding multiples of 10 and 100, multiplying and dividing 2 and 3 digit numbers by 1 and 2 digit numbers, and solving problems using addition, subtraction, multiplication, and division.

This set includes 144 challenges (12 cards with 12 challenges per card), giving students practice dealing with identification of fractional parts of wholes, and of groups, identification of fractions along a number line, estimation using fractions, identifying equivalent fractions, simplifying fractions, comparing fractional differences, ordering, adding and subtracting fractions with like denominators, and adding and subtracting mixed fractions with like denominators. 

This set includes 144 challenges (12 cards with 12 challenges per card), giving students practice dealing with identification of decimals in tenths and hundredths, expressing decimals as fractions, comparing and ordering decimals, naming mixed decimals, identifying decimals along a number line, rounding decimals to the nearest whole number, adding and subtracting decimals and expressing decimals as fractions and percents.

This set includes 144 challenges (12 cards with 12 challenges per card), giving students practice and conceptual understanding of number patterns using numbers 4-9, determining a rule to find missing numbers, using specific rules dealing with -8, x7, divide by 2 to find missing numbers, solving for unknowns using addition, subtraction, multiplication, and division, and using given information to find the value of shapes.

This set includes 144 challenges (12 cards with 12 challenges per card)  Giving students practice and conceptual understanding of geometric illustrations  And their correct names, matching equivalent units of measurement, matching  Definitions of measurement to its specific number of units, finding perimeter,  Determining an unknown from partial information, finding the areas and volumes,  Determining the number if lines of symmetry, and locating points of a graph.

This set includes 144 challenges (12 cards with 12 challenges per card), giving students practice and conceptual understanding of probabilities when tossing 2 dice, using a multiplication chart to determine probabilities, finding probabilities from limited information, finding mean (average), median (middle point), and ranges from a set of data, determining likelihoods using cards, spinners, and colored balls, using venn diagrams, solving problems from table data, and using data from graphs to solve problems.