二年级加减法2 (1页18题).docxVIP

二年级加减法27+35–37=84–55–15=32+(22–13)=61+29=41–13=82–56=7+76=21+29–8=84–46–29=38+(51–6)=26+48=63–55=81–56=7+28=7+36...