A_ Place value

• A1_ Place value names up to ten thousands
• A2_ Value of a digit up to ten thousands
• A3_ Convert to/from a number
• A4_ Convert between place values
• A5_ Convert between standard and expanded form
• A6_ Place value word problems

B_ Ordering and comparing

• B1_ Comparing numbers
• B2_ Which number is greatest/least?
• B3_ Order numbers

C_ Rounding

• C1_ Round to the nearest ten or hundred

D_ Estimate sums

• D1_ Estimate sums by rounding: up to 1,000
• D2_ Estimate sums by rounding: word problems

E_ Estimate differences

• E1_ Estimate differences by rounding: up to 1,000
• E2_ Estimate differences by rounding: word problems

F_ Addition: three digits

• F1_ Use number lines to add three-digit numbers
• F2_ Add two numbers up to three digits
• F3_ Add two numbers up to three digits: word problems
• F4_ Add three numbers up to three digits each
• F5_ Add three numbers up to three digits each: word problems

G_ Subtraction: three digits

• G1_ Use number lines to subtract three-digit numbers
• G2_ Subtract numbers up to three digits
• G3_ Subtract across zeros
• G4_ Subtract numbers up to three digits: word problems

H_ Addition: four or five digits

• H1_ Add two numbers up to four digits
• H2_ Add two numbers up to four digits: word problems
• H3_ Add three numbers up to four digits each
• H4_ Add three numbers up to four digits each: word problems
• H5_ Add two numbers up to five digits

I_ Subtraction: four or five digits

• I1_ Subtract two numbers up to four digits
• I2_ Subtract two numbers up to four digits: word problems
• I3_ Subtract two numbers up to five digits

J_ Mixed operations: addition and subtraction

• J1_ Mixed Operation
• J2_ Addition and subtraction word problems

K_ Skip-counting

• K1_ Skip-counting sequences

L_ Multiplication skill builders

• L1_ Multiplication Strategies
• L2_ Multiply by 0
• L3_ Multiply by 1
• L4_ Multiply by 2
• L5_ Multiply by 3
• L6_ Multiply by 4
• L7_ Multiply by 5
• L8_ Multiply by 6
• L9_ Multiply by 7
• L10_ Multiply by 8
• L11_ Multiply by 9
• L12_ Multiply by 10
• L13_ Multiply by 11
• L14_ Multiply by 12

M_ Multiplication fluency up to 10

• M1_ Multiplication facts for 2, 3, 4, 5, and 10
• M2_ Multiplication facts for 6, 7, 8, and 9
• M3_ Multiplication facts up to 10

N_ Multiplication fluency up to 12

• N1_ Multiplication facts to 12

O_ Multiplication properties

• O1_ Properties of multiplication
• O2_ Multiply by 0 or 1

P_ Multiplication word problems

• P1_ Multiplication word problems with factors up to 5
• P2_ Multiplication word problems with factors up to 10

Q_ Two-digit multiplication

• Q1_ Multiply by a multiple of ten
• Q2_ Multiply one-digit numbers by two-digit numbers
• Q3_ Multiply one-digit numbers by two-digit numbers: word problems

R_ Division skill builders

• R1_ Divide by 1
• R2_ Divide by 2
• R3_ Divide by 3
• R4_ Divide by 4
• R5_ Divide by 5
• R6_ Divide by 6
• R7_ Divide by 7
• R8_ Divide by 8
• R9_ Divide by 9
• R10_ Divide by 10
• R11_ Divide by 11
• R12_ Divide by 12

S_ Division fluency up to 10

• S1_ Division facts for 2, 3, 4, 5, and 10
• S2_ Division facts for 6, 7, 8, and 9
• S3_ Division facts up to 10

T_ Division fluency up to 12

• T1_ Division facts up to 12

U_ Division word problems

• U1_ Division word problems

V_ Mixed operations: multiplication and division

• V1_ Multiplication and division facts up to 5, 10, and 12
• V2_ Multiplication and division word problems

W_ Mixed operations

• W1_ Add, subtract, multiply, and divide
• W2_ Addition, subtraction, multiplication, and division word problems

X_ Fractions

• X1_ Understanding fractions
• X2_ Fraction area models
• X3_ Fractions on a number line
• X4_ Fractions of a set
• X5_ Equivalent fractions
• X6_ Comparing fractions

Y_ Geometry

• Y1_ Types of quadrilaterals
• Y2_ Parallelograms
• Y3_ Rhombuses
• Y4_ Rectangles
• Y5_ Squares
• Y6_ Trapezoids
• Y7_ Kites
• Y8_ Regular polygons
• Y9_ Perimeter
• Y10_ Area of rectangles
• Y11_ Area of compound shapes

Z_ Data and measurement

• Z1_ Line plots
• Z2_ How to tell time
• Z3_ Elapsed time
• Z4_ Metric units of measurement
• Z5_ Customary units of measurement