MathsheetsMake a worksheet →3.OA.B.5
Use order, regrouping and breaking apart to make multiplying easier.
Worksheets for this standard 3 topics
The standard, officially
Apply properties of operations as strategies to multiply and divide.* Examples: If 6 × 4 = 24 is known, then 4 × 6 = 24 is also known. (Commutative property of multiplication.) 3 × 5 × 2 can be found by 3 × 5 = 15, then 15 × 2 = 30, or by 5 × 2 = 10, then 3 × 10 = 30. (Associative property of multiplication.) Knowing that 8 × 5 = 40 and 8 × 2 = 16, one can find 8 × 7 as 8 × (5 + 2) = (8 × 5) + (8 × 2) = 40 + 16 = 56. (Distributive property.) *Students need not use formal terms for these properties.
Leads to
3.NBT.A.3Multiply by multiples of ten 3.OA.C.7Know the times tables fluently 3.OA.D.9Explain patterns in arithmetic 4.NBT.B.5Multiply multi-digit numbers 4.NBT.B.6Divide by one-digit numbers 5.MD.C.5Use the volume formulas 6.EE.A.3Rewrite expressions in equal forms 6.EE.A.4Identify equivalent expressions