... PMDIGITAL FINAL PROOF5 + 5 = 10“Look, my toes are a double!” Max says. “I have 5 toes on each foot.”Sara looks at her toes. “Mine, too,” she says.Sara and Max wiggle their toes in the water.13ca21os_lay_070107ac_cr.indd ... tractor has 2 front wheels and 2 back wheels. How many wheels does the tractor have in all? 2 + 2 = ___2. Max and Sara are picking corn. Max picks 9 ears. Sara picks 9 ears. How many ears ... carrots, too. They take 12 carrots to Sara’s mom. She will clean the carrots and save them for supper.15ca21os_lay_070107ac_cr.indd 17 1/8/07 6:05:00 PMDIGITAL FINAL PROOF Math Concept Reader Doubles...