?????úó??ìμ?ê??ù?D, ?￡í??????ü°′ê±è???μ?íê3éê??ù×÷òμ?￡????ê?ó|?ì±?òμéú??ê?í?D?±à?a′ó?ò·??íμ?èy?ê????2áêy?§ê??ù×÷òμ′e°?￡??￡í???′ó?òóD°??ú?￡

????μú8ò3

【资料图】

????ò??￠?±?óD′μ?êy?￡

????960 600

????720 690

????1500 1000

????32 16

????10 7……4

????24 15

?????t?￠?úà¨o?à?ì?é?o?êêμ?μ￥????3??￡

????1. 2(?×)

????2. 2(·??×)

????3. 3(??·??×)

????4. 20(?×)

????5. 5(·??×) 25(??·?·??×)

????6. (??·??×)

????7. 18(??·?·??×)

????8. 18(à??×) 12(à??×) 216(??·?à??×)

????èy?￠×???éú???￡

????1. 6×4=24(??)

????24??=24??

????′e￡o6á?3μ×?±?24????×ó1?á??￡

????2. 1?§?×=1000?×

????1000÷5=200(?×)

????′e￡o?????ù??·??ó?ü200?×?￡

????μú9ò3

????ò??￠?ò?áì??￡

????1. (á?)??êy (èy)??êy

????2. (ê?)?? (á?)??êy

????3. (0)

?????t?￠?á?e±-?￡

????0

????11 720

????240 22 180

????990 4200 80 640

????èy?￠êy?§ò??o?￡

????è?′í!

???????a￡o

????1 8 0 1 0 7 1 1 4

????2)3 6 0 4)4 2 8 4)4 5 6

????2 4 4

????1 6 2 8 5

????1 6 2 8 4

????0 0 1 6

????1 6

????0

????μú10ò3

????ò??￠?áè??e??3×?￡

?????aê? 27→440

????→ 36→850

????→1000→107

????→ 130→?ù

?????t?￠?′?-í?μ?×?￡?ó???á?ò?á??￡

?????yD?óú600￡o42×11?￠29×11

?????y′óóú600￡o32×21?￠38×29

????èy?￠×???éú???￡

????80×12÷6

????=960÷6

????=160(?§??)

????′e￡o???ù??′???160?§???￡

????μú11ò3

????ò??￠?ò?óó?￡?ó???á?ò?á??￡

????25×4=100 4×6-8=16

????480÷4=120 (70-20)×6=300

????0÷70=0 100-50÷2=75

????240÷4=60

?????t?￠?òà′???￡

????1. C

????2. D

????3. B

????èy?￠ó?êúê??????￡(′??ùo?μ?òa?é???￡)

????612(?é??) 105……2(?é??)

????810 63……2