B2.3: Use mental math strategies, including estimation, to add and subtract…
Use mental math strategies, including estimation, to add and subtract whole numbers that add up to no more than 1000, and explain the strategies used.
The Ontario Mathematics, Grades 1–8 outcome B2.3 for Grade 3 says: “Use mental math strategies, including estimation, to add and subtract whole numbers that add up to no more than 1000, and explain the strategies used.” These printable Fieldbook pages practise it, each with a full answer key.
Printable practice for B2.3
These pages practise a closely related idea; the match to B2.3 is partial.
- Grade 3 Ontario Math: Number printable pack
3 practice pages, 1 assessment, with answer keys. Free sample.
- Grade 3 Word Problems: 100 Canadian Situations printable pack
6 practice pages, with answer keys. Free sample.
- Grade 3 Common Core Math: Number and Operations printable pack
3 practice pages, 1 assessment, with answer keys. Free sample.
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Compared with Common Core: 3.NBT.A.2 (partial).
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