Answer: just do 10.8×9×6 and divide the answer by two
Step-by-step explanation:
Answer:
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Step-by-step explanation:
Put the operation in order to explain you
<span><span><span>12</span>+<span>22</span>+<span>32</span>+<span>42</span>+<span>52</span>+<span>62</span>+<span>72</span>=140</span><span><span>12</span>+<span>22</span>+<span>32</span>+<span>42</span>+<span>52</span>+<span>62</span>+<span>72</span>=140</span></span><span> </span>
