Mathematics
Standard 1 · 31 topics available
Chapter 1 · Whole Numbers up to 100
Quantity Intuitively
Look and know how many! Compare groups to see more, less, or the same.
OpenNumber Value
Every number has a value. See how numerals, words and counts match up!
OpenWriting Numbers
Learn to write numbers as numerals and as words. Neat and correct!
OpenCombining Numbers
Put groups together to find the total. Combining is adding!
OpenNumber Sequence
Numbers in order! Count up, count back, and find the missing number.
OpenPlace Value
Every digit has a place. Learn tens and ones in two-digit numbers!
OpenEstimation
Make a smart guess that is close! Learn to estimate and round to tens.
OpenNumber Patterns
Count on and count back to find what number comes next!
OpenProblem Solving
Read the little story, then add or take away to find the answer!
OpenChapter 2 · Basic Operations
The Concept of Addition and Subtraction
Add to make more, take away to make less. Meet + and −!
OpenAddition Within 100
Add tens with tens and ones with ones to make numbers up to 100!
OpenSubtraction Within 100
Take away ones from ones and tens from tens, within 100!
OpenRepeated Addition
Add the same number again and again to count equal groups fast!
OpenRepeated Subtraction
Take away the same number again and again down to 0 to share equally!
OpenProblem Solving
Let's solve fun word problems by adding and taking away small numbers!
OpenChapter 3 · Fractions
Chapter 4 · Money
Chapter 5 · Time
Chapter 6 · Measurement
Chapter 7 · Space
Chapter 8 · Data Management
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