Question

a) 0,02 b) 4,54 c) 3,001
+ 3,12 + 2,15 +0,143


d) 4,1 e) 75,20 f) 0,8
+0,2 + 0,01 + 0,3


g) 1,01 h) 40,30 i) 5,40
+ 3,30 + 2,18 + 2,32


j) 0,003 k) 17,80 l) 35,200
+ 0,120 + 9,20 + 12,030




ME AJUDEEEEEEEEEEEEEEEEEEEEEEEM

Answer 1

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$\bf{{\pink{a) \: 3.14}}} \\ \bf{{\pink{b) \: 6.69}}} \\ \bf{{\pink{c) \: 3.144}}} \\\bf{{\pink{d) \: 4.3}}} \: \: \: \: \\ \bf{{\pink{e) \: 75.21}}} \\ \bf{{\pink{f) \: 1.1 \: \: \: \: \: }}} \\ \bf{{\pink{g) \: 4.31 \: }}} \\ \bf{{\pink{h) \: 42.48}}}$

$\bf{{\pink{i) \: 7.72}}} \\ \bf{{\pink{j) \: 0.123}}} \\ \bf{{\pink{k) \: 27}}} \: \: \: \: \: \: \\ \bf{{\pink{l) \: 47.23}}}$

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Conta armada:

A-

$\: \: \: \: \bf{{\pink{0.02}}} \\ \bf{{\pink{ + 3.12}}} \\ \: \: \: \: \bf{{\pink{3.14}}}$

B-

$\: \: \: \bf{{\pink{4.54}}} \\ \bf{{\pink{ + 2.15}}} \\ \: \: \: \bf{{\pink{6.69}}}$

C-

$\: \: \: \: \bf{{\pink{3.001}}} \\ \bf{{\pink{ + 0.143}}} \\ \: \: \: \bf{{\pink{3.144}}}$

D-

$\: \: \: \: \bf{{\pink{4.1}}} \\ \bf{{\pink{ + 0.2}}} \\ \: \: \: \: \bf{{\pink{4.3}}}$

E-

$\bf{{\pink{75.20}}} \\ \bf{{\pink{ + 0.01}}} \\ \: \bf{{\pink{75.21}}}$

F-

$\: \: \bf{{\pink{ {}^{1} 0.8}}} \\ \bf{{\pink{ + 0.3}}} \\ \: \: \: \: \bf{{\pink{1.1}}}$

G-

$\: \: \: \: \bf{{\pink{1.01}}} \\ \bf{{\pink{ + 3.30}}} \\ \: \: \: \: \bf{{\pink{4.31}}}$

H-

$\bf{{\pink{40.30}}} \\ \bf{{\pink{ + 2.18}}} \\ \bf{{\pink{42.48}}}$

I-

$\: \: \: \: \bf{{\pink{5.40}}} \\ \bf{{\pink{ + 2.32}}} \\ \: \: \: \: \bf{{\pink{7.72}}}$

J-

$\: \: \: \: \bf{{\pink{0.003}}} \\ \bf{{\pink{ + 0.120}}} \\ \: \: \: \: \bf{{\pink{0.123}}}$

K-

$\bf{{\pink{ {}^{1} 1 {}^{1} 7.80}}} \\ \: \: \: \bf{{\pink{ + 9.20}}} \\ \bf{{\pink{ \: \: \: \: \: \: 27.0}}}$

L-

$\: \: \: \bf{{\pink{35.20}}} \\ \bf{{\pink{ + 12.03}}} \\ \: \: \: \: \bf{{\pink{47.23}}}$

Vamos à uma pequena explicação!

⇒ Adicione zeros, para obter o mesmo número de casas decimais.

⇒ Some os números...

⇒ Some novamente!

⇒ Some ;-;

⇒ Continue somando...

⇒ E desça o sinal decimal.

$\boxed{\boxed{\boxed{\bf{{\pink{\star \: \mathtt{Att: Bella}}}}}}}$