Question

1. decimals, fractions, integers score __/84 or __% a. decimal calculations score /48 or ____% addition tenths hundredths thousandths 10.4+14.5= 24.9 12.12+15.16= 27.28 57.125+3.147= 60.272 13.6+ 9.7= 23.3 26.19+19.85= 46.04 24.023+15.044= 39.067 26.1+ 34.8= 60.9 67.06 + 63.18= 130.24 278.179+ 136.338= 414.517 109.5+ 88.9= 198.4 144.45+113.55= 258 1205.299+ 406.001= 1611.3 score = score = score = subtraction tenths hundredths thousandths 14.5- 10.4= 4.1 15.16- 12.14= 3.02 57.125- 3.122= 54.003 13.6- 9.7= 3.9 26.19-19.85= 6.34 24.023-15.044= 8.979 134.9 - 24.5= 110.4 67.33- 64.35 = 2.98 278.179- 136.338= 141.841 65.7-32.8= 32.9 144.45 - 55.67= 88.78 1890.390-776.378= 1114.012 score= score= score=

Explanation:

Step1: Verify Decimal Addition

Tenths Column:

$10.4+14.5=24.9$ (correct)
$13.6+9.7=23.3$ (correct)
$26.1+34.8=60.9$ (correct)
$109.5+88.9=198.4$ (correct)

Hundredths Column:

$12.12+15.16=27.28$ (correct)
$26.19+19.85=46.04$ (correct)
$67.06+63.18=130.24$ (correct)
$144.45+113.55=258$ (correct)

Thousandths Column:

$57.125+3.147=60.272$ (correct)
$24.023+15.044=39.067$ (correct)
$278.179+136.338=414.517$ (correct)
$1205.299+406.001=1611.3$ (correct)

Step2: Verify Decimal Subtraction

Tenths Column:

$14.5-10.4=4.1$ (correct)
$13.6-9.7=3.9$ (correct)
$134.9-24.5=110.4$ (correct)
$65.7-32.8=32.9$ (correct)

Hundredths Column:

$15.16-12.14=3.02$ (correct)
$26.19-19.85=6.34$ (correct)
$67.33-64.35=2.98$ (correct)
$144.45-55.67=88.78$ (correct)

Thousandths Column:

$57.125-3.122=54.003$ (correct)
$24.023-15.044=8.979$ (correct)
$278.179-136.338=141.841$ (correct)
$1890.390-776.378=1114.012$ (correct)

Answer:

All the handwritten answers for the decimal addition and subtraction problems are correct. The total possible score for this section is 84, so the score is 84/84 or 100%.