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20 16 mathematical answers to the new curriculum standard test paper
Answer: Page 16: II. 1, √2, √3, ×4, √.

Four. 1, 45÷9=5 (pieces) (select relevant conditional expression) 2,310-130 =180 (this)

Page 18. 1, 320+ 170=490 (yuan) 490 < 500 is enough for 2,5× 8+50 = 90 (tree)

Page 19: I. 1, up 2, right 6 or right 6, up 2.

Page 20: IV. 1, 120-40=80 (tree) 2,40 ÷ 8 = 5.

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