โ13.1 Subtracting a two-digit number and a one-digit number (no borrowing)
Learn how to subtract a two-digit number and a one-digit number without borrowing (no regrouping)
โ13.2 Subtracting a two-digit number and a two-digit number (no borrowing)
Learn how to subtract a two-digit number and another two-digit number without borrowing (no regrouping)
โ13.3 Subtracting a two-digit number and a one-digit number (with borrowing)
Learn how to subtract a two-digit number and a one-digit number when borrowing is needed (regrouping).
โ13.4 Subtracting a two-digit number and a two-digit number (with borrowing)
Learn how to subtract a two-digit number and another two-digit number when borrowing is needed (regrouping).
โ13.5 Finding the difference by vertical subtraction (no borrowing)
Learn how to subtract numbers using vertical format without borrowing.
โ13.6 Finding the difference by vertical subtraction (with borrowing)
Learn how to subtract numbers using vertical format with borrowing (regrouping).
โโ13.7 Relationship between addition and subtraction
Learn the relationship between addition and subtraction (Fact Families).
โ13.8 Finding the value of an unknown
Learn how to find the value of an unknown in simple equations.