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Column addition: Lesson 1: butterflies

3 - Whiteboard Challenges

Spot the Mistake!

Someone has made a mistake in their column addition. Can you explain the mistake to your talk partner?

Did you know?

Butterflies usually lay their eggs on the underside of leaves, where they are protected from bad weather and predators. Incredibly, butterflies glue their eggs to the leaves! Most butterfly eggs are pale yellow or green in colour.

Use PAWS, counters and column addition to solve the following word problem.

A beautiful peacock butterfly lived for 332 days. In the first and second week of May, she laid 237 eggs on some nettle leaves. In the third and fourth weeks of May she laid a further 252 eggs.

How many eggs did this peacock butterfly lay during the month of May?