Add and subtract numbers mentally with increasingly large numbers.

In this worksheet, children recap and build on their learning from
previous years to mentally calculate sums and differences using
partitioning.
They use their knowledge of number bonds and place
value to add and subtract multiples of powers of 10.
If they know that 3 + 4 = 7, then 3 thousand + 4 thousand = 7 thousand
and 3,000 + 4,000 = 7,000.

Children need to be fluent in their knowledge of number
bonds to support the mental strategies.

How does knowing that 6 + 3 = 9 help you to work out 60,000 + 30,000?
“How can the numbers be partitioned to help add/subtract them?”
"Are any of the numbers multiples of powers of 10? "
“How does this help you to add/subtract them?”

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