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標題:
easy f2 mathz plz help
發問:
Estimate the values of the following. 1) 89+75+77+79+80+83+83+78 2) 12.04+11.53+8.92+9.18+10.03+12.53+11.99 3) 53.1+51.9+48.7+50.2+49.2+50.6+51.1+52.4+51.7+52.8 4)161.46x0.49 5)305.73x0.33 6)179.8x0.68
1) 89+75+77+79+80+83+83 +78 = 90+80+80+80+80+80+80+80 = 650 2) 12.04+11.53+8.92+9.1 8+10.03+12.53+11.99 = 12+12+9+9+10+13+12 = 77 3) 53.1+51.9+48.7+50.2+ 49.2+50.6+51.1+52.4+ 51.7+52.8 = 53+52+49+50+50+51+51+52+52+53 = 513 4)161.46x0.49 = 160x0.5 = 80 5)305.73x0.33 = 310x0.3 = 93 6)179.8x0.68 = 180x0.7 = 126
其他解答:1C924F1C0172E337
easy f2 mathz plz help
發問:
Estimate the values of the following. 1) 89+75+77+79+80+83+83+78 2) 12.04+11.53+8.92+9.18+10.03+12.53+11.99 3) 53.1+51.9+48.7+50.2+49.2+50.6+51.1+52.4+51.7+52.8 4)161.46x0.49 5)305.73x0.33 6)179.8x0.68
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最佳解答:1) 89+75+77+79+80+83+83 +78 = 90+80+80+80+80+80+80+80 = 650 2) 12.04+11.53+8.92+9.1 8+10.03+12.53+11.99 = 12+12+9+9+10+13+12 = 77 3) 53.1+51.9+48.7+50.2+ 49.2+50.6+51.1+52.4+ 51.7+52.8 = 53+52+49+50+50+51+51+52+52+53 = 513 4)161.46x0.49 = 160x0.5 = 80 5)305.73x0.33 = 310x0.3 = 93 6)179.8x0.68 = 180x0.7 = 126
其他解答:1C924F1C0172E337
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