Calculating flexibly

Maths

Multiplication and division

Which of the following number sentences would be the most efficient choice to use when estimating 237 x 4

Which estimation is correct for the calculation 192 ÷ 8?

I rounded a calculation and got the estimated answer of 560. But what was my original sum?

Which of the following calculations would provide you with the value indicated on the marked number line after it is rounded to create an estimated answer?

Which of the following methods for answering a multiplication questions is NOT a mental strategy?

Today we discussed distributive law in relation to multiplication. But which of the following number sentences does NOT correctly represent distributive law?

Which of the following representations would be efficient for the calculation 317 x 23?

For which of these calculations would you consider using a mental strategy and NOT a written method?

Which calculation do the dienes represent?

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