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Resources

Multiply and divide decimals by powers of ten

12.5\times24.5=

0.9=\frac{3}{x}

2.91 \times 5.51 \times 2.75

\div 100=0.16

0.342 \div 0.12

-5 \frac{1}{2} \div\left(-4 \frac{1}{2}\right)=

1 \frac{2}{7} \div\left(-2 \frac{1}{4}\right)=

-1 \frac{3}{8} \div\left(-1 \frac{4}{7}\right)=

100-100*0

\$8400

7.25\%

9.5

225\cdot1.124\cdot200=252900

\frac{200 \cdot 0.0358945 \cdot1 \cdot 1 \cdot 1\cdot1}{15^2 \cdot 1.124 \cdot 200}

1

{ }^{2} 67.3 \times 0.89=

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4.16 \times 2.1

\frac{19.944}{20.524} \times 100 \%

31.5 \div 10=\frac{315}{10} \times \frac{1}{10}=\frac{315}{100}=

1\times\pi\times(11.5)^{2}\times(16)

Multiplying decimals like

0.847 \times 3.54

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(standard algorithm)

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Google Classroom

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0.345 \times 83.8=

100 \times \square=534.2

0.0005321 \times 10^{7}

5.72 \times 10^{4}

5.72 \times 10^{1}

x

is decreased by

45 \%

. Which expression represents this situation?

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0.955 x

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45 x

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0.45 x

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0.55 x

-4.9 x+4 x

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46.04 \times 10000

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93.08 \times 1000

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24.33 \times 10

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98.05 \times 10

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118.4 \times 10

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94.6 \times 10

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114.458 \times 10

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116.968 \times 10

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144.27 \times 10

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146.02 \times 10

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147.6 \times 10

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21.4 \times 10

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106.26 \times 10

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104.5 \times 10

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49.23 \times 10

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115.792 \times 10

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14.99 \times 10

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41.3 \times 10

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83.5 \times 10

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123.835 \times 10

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3000\times675

129.6 \div 3.6 =

10.5 \div 81.0

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19.68 \div 0.24=

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10.5 \div 2.1 =

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1.395\div0.31=