THE NUMBERSTRIDE LEARNING HUB
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Clear explanations. Worked examples. A little practice to make it stick.
35 × 11
How to multiply by 11 in your head
Learn a simple mental math strategy for multiplying two-digit numbers by 11, including when to carry.
Learn the strategy65²
Square numbers ending in 5
Calculate squares such as 35 squared and 85 squared using one small multiplication and a predictable ending.
Learn the strategy97 × 96
Multiply numbers close to 100
Use the gaps from 100 to simplify calculations like 97 times 96. Understand place value and carrying.
Learn the strategy