Điền dấu >, 5000<span class="MathJax_Preview" style="color: inherit;"><span class="MJXp-math" id="MJXp-Span-1"><span class="MJXp-mstyle" id="MJXp-Span-2"><span class="MJXp-mi MJXp-italic" id="MJXp-Span-3">c</span><span class="MJXp-msubsup" id="MJXp-Span-4"><span class="MJXp-mi MJXp-italic" id="MJXp-Span-5" style="margin-right: 0.05em;">m</span><span class="MJXp-mn MJXp-script" id="MJXp-Span-6" style="vertical-align: 0.5em;">2</span></span></span></span></span><span id="MathJax-Element-1-Frame" class="mjx-chtml MathJax_CHTML MJXc-processed" tabindex="0" style="font-size: 127%;"><span id="MJXc-Node-1" class="mjx-math"><span id="MJXc-Node-2" class="mjx-mrow"><span id="MJXc-Node-3" class="mjx-mstyle"><span id="MJXc-Node-4" class="mjx-mrow" style="font-size: 144%;"><span id="MJXc-Node-5" class="mjx-mi"><span class="mjx-char MJXc-TeX-math-I" style="padding-top: 0.199em; padding-bottom: 0.298em;">c</span></span><span id="MJXc-Node-6" class="mjx-msubsup"><span class="mjx-base"><span id="MJXc-Node-7" class="mjx-mi"><span class="mjx-char MJXc-TeX-math-I" style="padding-top: 0.199em; padding-bottom: 0.298em;">m</span></span></span><span class="mjx-sup" style="font-size: 70.7%; vertical-align: 0.513em; padding-left: 0px; padding-right: 0.071em;"><span id="MJXc-Node-8" class="mjx-mn" style=""><span class="mjx-char MJXc-TeX-main-R" style="padding-top: 0.396em; padding-bottom: 0.347em;">2</span></span></span></span></span></span></span></span></span><script type="math/tex" id="MathJax-Element-1">\Large cm^2</script> Nên: 4<span class="MathJax_Preview" style="color: inherit;"><span class="MJXp-math" id="MJXp-Span-7"><span class="MJXp-mstyle" id="MJXp-Span-8"><span class="MJXp-msubsup" id="MJXp-Span-9"><span class="MJXp-mi MJXp-italic" id="MJXp-Span-10" style="margin-right: 0.05em;">m</span><span class="MJXp-mn MJXp-script" id="MJXp-Span-11" style="vertical-align: 0.5em;">2</span></span></span></span></span><span id="MathJax-Element-2-Frame" class="mjx-chtml MathJax_CHTML MJXc-processed" tabindex="0" style="font-size: 127%;"><span id="MJXc-Node-9" class="mjx-math"><span id="MJXc-Node-10" class="mjx-mrow"><span id="MJXc-Node-11" class="mjx-mstyle"><span id="MJXc-Node-12" class="mjx-mrow" style="font-size: 144%;"><span id="MJXc-Node-13" class="mjx-msubsup"><span class="mjx-base"><span id="MJXc-Node-14" class="mjx-mi"><span class="mjx-char MJXc-TeX-math-I" style="padding-top: 0.199em; padding-bottom: 0.298em;">m</span></span></span><span class="mjx-sup" style="font-size: 70.7%; vertical-align: 0.513em; padding-left: 0px; padding-right: 0.071em;"><span id="MJXc-Node-15" class="mjx-mn" style=""><span class="mjx-char MJXc-TeX-main-R" style="padding-top: 0.396em; padding-bottom: 0.347em;">2</span></span></span></span></span></span></span></span></span><script type="math/tex" id="MathJax-Element-2">\Large m^2</script> 5<span class="MathJax_Preview" style="color: inherit;"><span class="MJXp-math" id="MJXp-Span-12"><span class="MJXp-mstyle" id="MJXp-Span-13"><span class="MJXp-mi MJXp-italic" id="MJXp-Span-14">d</span><span class="MJXp-msubsup" id="MJXp-Span-15"><span class="MJXp-mi MJXp-italic" id="MJXp-Span-16" style="margin-right: 0.05em;">m</span><span class="MJXp-mn MJXp-script" id="MJXp-Span-17" style="vertical-align: 0.5em;">2</span></span></span></span></span><span id="MathJax-Element-3-Frame" class="mjx-chtml MathJax_CHTML MJXc-processed" tabindex="0" style="font-size: 127%;"><span id="MJXc-Node-16" class="mjx-math"><span id="MJXc-Node-17" class="mjx-mrow"><span id="MJXc-Node-18" class="mjx-mstyle"><span id="MJXc-Node-19" class="mjx-mrow" style="font-size: 144%;"><span id="MJXc-Node-20" class="mjx-mi"><span class="mjx-char MJXc-TeX-math-I" style="padding-top: 0.495em; padding-bottom: 0.298em; padding-right: 0.003em;">d</span></span><span id="MJXc-Node-21" class="mjx-msubsup"><span class="mjx-base"><span id="MJXc-Node-22" class="mjx-mi"><span class="mjx-char MJXc-TeX-math-I" style="padding-top: 0.199em; padding-bottom: 0.298em;">m</span></span></span><span class="mjx-sup" style="font-size: 70.7%; vertical-align: 0.513em; padding-left: 0px; padding-right: 0.071em;"><span id="MJXc-Node-23" class="mjx-mn" style=""><span class="mjx-char MJXc-TeX-main-R" style="padding-top: 0.396em; padding-bottom: 0.347em;">2</span></span></span></span></span></span></span></span></span><script type="math/tex" id="MathJax-Element-3">\Large dm^2</script>

Điền dấu >, 5000cm2cm2 Nên: 4m2m2 5dm2dm2

4.3/5

Tác giả: Thầy Tùng

Đăng ngày: 18 Aug 2022

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Câu hỏi:

Điền dấu >, <, = thích hợp vào chỗ chấm :

a) 2354cm2cm2 … 234m2m2

b) 27km2km2 … 270000m2m2

c) 4m2m2 5dm2dm2 … 5000cm2cm2

Đáp án án đúng là: A

Lời giải chi tiết:

a) Có: 234m2m2 = 2340000cm2cm2

Vì: 2354cm2cm2 < 2340000cm2cm2

Nên: 2354cm2cm2 < 234m2m2

b) 27km2km2 = 27000000m2m2

Vì: 27000000m2m2 > 270000m2m2

Nên: 27km2km2 > 270000m2m2

c) 4m2m2 5dm2dm2

= 40000cm2cm2 + 500cm2cm2

= 40500cm2cm2

Vì: 40500cm2cm2 > 5000cm2cm2

Nên: 4m2m2 5dm2dm2 > 5000cm2cm2