add 1. 2by3+-4by5 +1+-2by3 +-11by 5
2. 5by8 + -8by9 +0+-13by3 +17by24
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0
Answer:
add 1. 2by3+-4by5 +1+-2by3 +-11by 5
2. 5by8 + -8by9 +0+-13by3 +17by24
Answered by
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Answer:
1.2×3-4×5+1-2×3-11×5
=6-20+1-6-55
=6-21-6-55
=-15-6-55
=9-55
=-46//
2.5×8-8×9+0-13×3+17×24
=40-72-39+338
=40-72+299
=40+227
=267//
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