"The concept of doubling goes down easy in this combination of multiplication facts, rhyme, humor — and diner food." — The Horn BookDown on the farm one morning, Papa McFay orders his sons to hop to their chores. But from Minnie’s kitchen wafts a smell that gets the boys itchin’, and one by one, they succumb to the call of that sweet aroma. Each brother arrives at Minnie’s twice as hungry as his brother before — and looking for twice as much grub. Will they be in double trouble when Papa McFay tracks them down? With singsong rhythms and comical illustrations spiced with flavor, Dayle Ann Dodds and John Manders serve up a humorous lesson in multiplication.