$76 ÷ 4 =$ $90 ÷ 6 =$ $36 ÷ 2 =$
$760 ÷ 4 =$ $900 ÷ 6 =$ $360 ÷ 2 =$
$768 ÷ 4 =$ $906 ÷ 6 =$ $365 ÷ 2 =$
$760 ÷ 4 =$ $900 ÷ 6 =$ $360 ÷ 2 =$
$768 ÷ 4 =$ $906 ÷ 6 =$ $365 ÷ 2 =$
答案
1. $76÷4$
$\begin{aligned}&76÷4\\=&(70+6)÷4\\=&70÷4+6÷4\\=&17······2+1······2\\=&19\end{aligned}$
结论:19
2. $90÷6$
$\begin{aligned}&90÷6\\=&(60+30)÷6\\=&60÷6+30÷6\\=&10+5\\=&15\end{aligned}$
结论:15
3. $36÷2$
$\begin{aligned}&36÷2\\=&(30+6)÷2\\=&30÷2+6÷2\\=&15+3\\=&18\end{aligned}$
结论:18
4. $760÷4$
$\begin{aligned}&760÷4\\=&(76×10)÷4\\=&76÷4×10\\=&19×10\\=&190\end{aligned}$
结论:190
5. $900÷6$
$\begin{aligned}&900÷6\\=&(90×10)÷6\\=&90÷6×10\\=&15×10\\=&150\end{aligned}$
结论:150
6. $360÷2$
$\begin{aligned}&360÷2\\=&(36×10)÷2\\=&36÷2×10\\=&18×10\\=&180\end{aligned}$
结论:180
7. $768÷4$
$\begin{aligned}&768÷4\\=&(760+8)÷4\\=&760÷4+8÷4\\=&190+2\\=&192\end{aligned}$
结论:192
8. $906÷6$
$\begin{aligned}&906÷6\\=&(900+6)÷6\\=&900÷6+6÷6\\=&150+1\\=&151\end{aligned}$
结论:151
9. $365÷2$
$\begin{aligned}&365÷2\\=&(360+5)÷2\\=&360÷2+5÷2\\=&180+2······1\\=&182······1\end{aligned}$
结论:182……1
$\begin{aligned}&76÷4\\=&(70+6)÷4\\=&70÷4+6÷4\\=&17······2+1······2\\=&19\end{aligned}$
结论:19
2. $90÷6$
$\begin{aligned}&90÷6\\=&(60+30)÷6\\=&60÷6+30÷6\\=&10+5\\=&15\end{aligned}$
结论:15
3. $36÷2$
$\begin{aligned}&36÷2\\=&(30+6)÷2\\=&30÷2+6÷2\\=&15+3\\=&18\end{aligned}$
结论:18
4. $760÷4$
$\begin{aligned}&760÷4\\=&(76×10)÷4\\=&76÷4×10\\=&19×10\\=&190\end{aligned}$
结论:190
5. $900÷6$
$\begin{aligned}&900÷6\\=&(90×10)÷6\\=&90÷6×10\\=&15×10\\=&150\end{aligned}$
结论:150
6. $360÷2$
$\begin{aligned}&360÷2\\=&(36×10)÷2\\=&36÷2×10\\=&18×10\\=&180\end{aligned}$
结论:180
7. $768÷4$
$\begin{aligned}&768÷4\\=&(760+8)÷4\\=&760÷4+8÷4\\=&190+2\\=&192\end{aligned}$
结论:192
8. $906÷6$
$\begin{aligned}&906÷6\\=&(900+6)÷6\\=&900÷6+6÷6\\=&150+1\\=&151\end{aligned}$
结论:151
9. $365÷2$
$\begin{aligned}&365÷2\\=&(360+5)÷2\\=&360÷2+5÷2\\=&180+2······1\\=&182······1\end{aligned}$
结论:182……1
$18 × 4 =$ $17 × 6 =$ $29 × 4 =$ $15 × 8 =$
$72 ÷ 4 =$ $16 × 7 =$ $116 ÷ 4 =$ $120 ÷ 8 =$
$72 ÷ 4 =$ $16 × 7 =$ $116 ÷ 4 =$ $120 ÷ 8 =$
答案
18×4=72
17×6=102
29×4=116
15×8=120
72÷4=18
16×7=112
116÷4=29
120÷8=15
17×6=102
29×4=116
15×8=120
72÷4=18
16×7=112
116÷4=29
120÷8=15
$660 ÷ 4$ $987 ÷ 8$ $428 ÷ 3$
答案
$660÷4$:
$660÷4 = 165$,
$\begin{array}{r r r r }&&1&6&5& \\ \hline &4&)&6&6&0 \\ &&4& \\ \hline &&2&6& \\ &&2&4& \\ \hline &&&2&0& \\ &&&2&0& \\ \hline &&&&0\end{array}$
$987÷8$:
$987÷8 = 123······3$。
$\begin{array}{r r r r r r r r r }&&1&2&3& \\ \hline &8&)&9&8&7 \\ &&8& \\ \hline &&1&8& \\ &&1&6& \\ \hline &&&2&7& \\ &&&2&4& \\ \hline &&&&3& \end{array}$
$428÷3$:
$428÷3 = 142······2$。
$\begin{array}{r r r r r r r r r }&&1&4&2& \\ \hline &3&)&4&2&8 \\ &&3& \\ \hline &&1&2& \\ &&1&2& \\ \hline &&&8& \\ &&&6& \\ \hline &&&2& \end{array}$
$660÷4 = 165$,
$\begin{array}{r r r r }&&1&6&5& \\ \hline &4&)&6&6&0 \\ &&4& \\ \hline &&2&6& \\ &&2&4& \\ \hline &&&2&0& \\ &&&2&0& \\ \hline &&&&0\end{array}$
$987÷8$:
$987÷8 = 123······3$。
$\begin{array}{r r r r r r r r r }&&1&2&3& \\ \hline &8&)&9&8&7 \\ &&8& \\ \hline &&1&8& \\ &&1&6& \\ \hline &&&2&7& \\ &&&2&4& \\ \hline &&&&3& \end{array}$
$428÷3$:
$428÷3 = 142······2$。
$\begin{array}{r r r r r r r r r }&&1&4&2& \\ \hline &3&)&4&2&8 \\ &&3& \\ \hline &&1&2& \\ &&1&2& \\ \hline &&&8& \\ &&&6& \\ \hline &&&2& \end{array}$
$552 ÷ ● + 57 = 63$ $★ × 7 - ★ × 2 = 120$ $▲ × 3 + ▲ × 5 = 216$
答案
1.对于方程$552÷● + 57 = 63$:
$552÷●=63 - 57$
$552÷● = 6$
$● = 552÷6$
$● = 92$
2.对于方程$★×7 - ★×2 = 120$:
$★×(7 - 2)=120$
$★×5 = 120$
$★ = 120÷5$
$★ = 24$
3.对于方程$▲×3 + ▲×5 = 216$:
$▲×(3 + 5)=216$
$▲×8 = 216$
$▲ = 216÷8$
$▲ = 27$
答案依次为$● = 92$;$★ = 24$;$▲ = 27$。
$552÷●=63 - 57$
$552÷● = 6$
$● = 552÷6$
$● = 92$
2.对于方程$★×7 - ★×2 = 120$:
$★×(7 - 2)=120$
$★×5 = 120$
$★ = 120÷5$
$★ = 24$
3.对于方程$▲×3 + ▲×5 = 216$:
$▲×(3 + 5)=216$
$▲×8 = 216$
$▲ = 216÷8$
$▲ = 27$
答案依次为$● = 92$;$★ = 24$;$▲ = 27$。
(1) 光明小学一共有多少人?
(2) 景点门票每人3元,一共要多少元?
(3) 学校租了9辆车,平均每辆车坐多少人?
(2) 景点门票每人3元,一共要多少元?
(3) 学校租了9辆车,平均每辆车坐多少人?
答案
答案略
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