How to fill it out. The first volume of the fourth grade mathematics is 35 times 19. You can calculate what 35 times 20 is, and then subtract it.
35× 19 = 35× 20-35 = 700-35 = 665 The first volume of mathematics in grade four is 35 times19. You can first calculate that 35 times 20 equals 700, and then subtract 35.