**Multiply multi-digit numbers up to 4 digits by a two-digit whole number using the formal written method of long multiplication.**

Y6 Calc 1 Investigation – A print out of the investigation seen below

**Investigation – Consecutive multiplication.**

A four digit number multiplied by a two digit number gives an answer of 244,154.

The four-digit number has consecutive ascending digits (such as 1234). The two-digit number has consecutive descending digits (such as 21).

Can you work out the number sentence?

Consider the different approaches you can use to find the answer (or question)

Answer:

The answer to this problem is:

5,678 x 43.