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Số? a) 1 cm2 = .?. mm2 4 cm2 = .?. mm2 10 cm2 = .?. mm2 b) 200 mm2 = .?. cm2 .........

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Giải Toán lớp 4 Bài 57: Mi-li-mét vuông

Toán lớp 4 Tập 2 trang 35 Bài 1: Số?

a) 1 cm2 = .?. mm2

4 cm2 = .?. mm2

10 cm2 = .?. mm2

b) 200 mm2 = .?. cm2

700 mm2 = .?. cm2

12 000 mm2 = .?. cm2

c) 3 cm2 5 mm2 = .?. mm2

2 cm2 8 mm2 = .?. mm2

10 cm2 10 mm2 = .?. mm2

Lời giải:

a) 1 cm2 = 100 mm2

4 cm2 = 400 mm2

10 cm2 = 1 000 mm2

b) 200 mm2 = 2 cm2

700 mm2 = 7 cm2

12 000 mm2 = 120 cm2

c) 3 cm2 5 mm2 = 305 mm2

2 cm2 8 mm2 = 208 mm2

10 cm2 10 mm2 = 1 010 mm2

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