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Please don't spam need answer with full explanation for std 7 CBSE. on a notebook pls urgent. ItzDarknessshadow65 pls |
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Answer» Answer: 7. 230 / 8. 180 / 9. 0 / 10. 23 Step-by-step explanation: 7. |21÷(-7)+12|×21+5 =|-3+12|×25+5 =9×25+5 =225+5 =230 8. 72 of 46×20÷(20+3)-2700 =(3312×20)÷23-2700 =66240÷23-2700 =2880-2700 =180 9. 22-[5+13÷{7×2+(5-3) of 6}×34] =22-[5+13÷{14+2 of 6}×34] =22-[5+13÷{14+12}×34] =22-[5+13÷26×34] =22-[5+0.5×34] =22-[5+17] =22-22 =0 10. 3×5-[8-{12+36÷(10-1)}] =15-[8-{12+36÷9}] =15-[8-{12+4}] =15-[8-16] =15-([-8] (negative×negative=+ ) =15+8 =23 |
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