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In the second volume of the sixth grade, mathematics supplementary exercises 22 and 23, the answer should be awarded 50.
22:

1.345.4

47 1

40 1.92

602.88

2.3. The square of14x (16/2) =200.96=0.0200.96.

0.200.96x35x 10=7.0336~7

3.3. The square x14x (10/2) = 785.

4.4 m = 400 cm

3. 14x(6 squared -4 squared) x400x7.8 =195936g =195.936kg.

23:

3. The square of14x6 x3-339.438+02

3. The square x of14x (5/2)10 =196.25.

3. The square of14x (8/2) x8=40 1.92.

2.

3. The square of14x (3/2) x0.3x2=7.065.

3.

8 1/4.5x3=54

4.

3. 14/( 10x2x 3. 14)= 5

3. The square of14x10x5 = 1570.

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