A one-page rounding check for Year 4, with the answers on page 2. Section 1 gives four numbers to round to the nearest 10, including 1,302 and 4,996. Section 2 does the same to the nearest 100 with 349, 750, 2,451 and 6,083. Section 3 uses the nearest 1,000, from 2,500 to 9,501. In Section 4 pupils estimate 498 + 307 by rounding each number to the nearest 100 first. It follows England National Curriculum rounding and estimating.
Number - number and place value
“round any number to the nearest 10, 100 or 1000”
Sections 1 to 3 give twelve numbers to round, four at each level.
Number - addition and subtraction
“estimate and use inverse operations to check answers to a calculation”
Section 4 has pupils round 498 and 307 before adding them, which gives an estimated total.
Four small answer boxes for 64, 85, 1,302 and 4,996.
The numbers 349, 750, 2,451 and 6,083, each with its own box.
Pupils round 2,500, 7,499, 1,850 and 9,501. Three of them sit very close to a halfway mark.
Two gaps for 498 and 307 rounded to the nearest 100, then a line for the estimated total.
The twelve rounded values, grouped by section, and the estimate of 800.
End of the unit
Give it as a ten-minute check once the rounding lessons are done, and mark it from page 2.
Spotting gaps
Look at Section 3 first. Pupils who write 8,000 for 7,499 or 2,000 for 2,500 need another go at the halfway rule.
A week later
Cover Section 4 and use Sections 1 to 3 as a starter to see what pupils still remember.
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