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a) 3124·7/2 =1562·7= 10934

b) 1400·2/7 =400

c) 175·3/5=35·3=105

d) 3240·7/9 =360·7= 2520

e) 4200 ·9/4 = 1050·9=9450

f) 583·4/11 =53·4=212

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a) 4/8·258=1/2·258= 258:2=129

b) 6/9·732=2/3·732=1464:3=488

c)18/6·121=3·121=363

d) 48/36·927=4/3·927=309·4=1236

e)125/75·624=5/3·624=208·5=1040

f)36/27·540=4/3·540=180·4=720

7/2*3124 = 7*1562 = 10934

2/7*1400 = 2800/7 = 400

7/9*3240 = 7*360 = 2520

9/4*4200 = 9*1050 = 9450

3/5*175 = 3*35 = 105

4/11*583 = 4*53 = 212

4/8*258 = 1032/8 = 129

6/9*732 = 4392/9 = 488

48/36*927 = 4/3*927 = 3708/3 = 1236

125/75*624 = 5/3*624 = 5*208 = 1040

18/6*121 = 3*121 = 363

36/27*540 = 4/3*540 = 4*180 = 720

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