You may want to try the following US editions.
1) Primary Math 2A & 2B workbooks;
2) Primary Math Challenging Word Problems 2;
3) Primary Math Intensive Practice 2A & 2B.
The difficulty: 1) is basic. 3) is more comprehensive and slightly harder than 2). In addition, 2) and 3) will put your kid ahead in math contests.
Totally, 1), 2) and 3) have about 1000 pages of math problems.
If you don't demand a lot from your kid, 1) is enough.
If you want your kid to do a lot of homework, try 1), 2) and 3).
If your kid is highly gifted, 2) and 3) are good enough.
1) Primary Math 2A & 2B workbooks;
2) Primary Math Challenging Word Problems 2;
3) Primary Math Intensive Practice 2A & 2B.
The difficulty: 1) is basic. 3) is more comprehensive and slightly harder than 2). In addition, 2) and 3) will put your kid ahead in math contests.
Totally, 1), 2) and 3) have about 1000 pages of math problems.
If you don't demand a lot from your kid, 1) is enough.
If you want your kid to do a lot of homework, try 1), 2) and 3).
If your kid is highly gifted, 2) and 3) are good enough.
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