һ
1.
(1)2468 1820(2)191715 (3)011235 2 (1)2+3+
(2)10-6+
(3)10+-20-
3.12345678910ѡ9ڡ ʽÿֻ1Ρ
+ + +
4.СС2ꣻٹ3ꣻ( )5.ǿǿС3Сʱƹ˸( )
6.ͼδ
+6( ) ++15( )
( )+
209311015817610
(1)һ( )( )С( ) (2)6( )8( )(3)0ǵ( )Ǵ( )( )(4)ӴС˳
(1)177ʮ1һ( ) (2)099ǵ9( ) (3)8ʱʱʱָ8ָ12( ) (4)κζ4ߣ4ȵġ( ) (5)Ǧʡīˮӡ鶼ѧϰƷ( ) ġ391213
+= = = -=
1.ɻͣ10ܷɻ3ܷɻڷɻϻͣŶټܷɻ?
2. СҪ12ɳѾ10Ҫٸɳ?
3. СѧȤСѧ9ˣƹȤССͬࣻ ȤС鹲жѧ?
4. Сȫϡ硢ϸ4ƻһУСҳ˶ٸƻ?
5. һֻССǰСǵ7ֻӺСǵ4ֻСһжֻ?
6.10ɨѣ5ѣڽжٰɨ?
1ʵ8+7+8+6+52+8+6+12+75
9-2= +4 + 4=16 - 4
10- 3 8+6 +2 2˳д 0 3 6 15
18 14 10
31235791114УʹʽÿֻһΣ
+=+=+=-
4ѷǷ뱭Ӻıˮ̣Ļ
564758 УʹСӶȡ
6ԲȦϲͬʹÿӶ15