own 24 each unknown. Double a known fact. own is 36. Builders w and label an array. 4. 4 x 8 = 32 Vocab obc 6.4 x 4== The unknown is 4 Model Math Melissa owns 4 sets of jewelry. Each s 2 earrings, 1 necklace, 1 bracelet, and 1 ring. How many welry does Melissa have all together? Write a multiplicatio Explain how you can double a known fact to find the answ 5-20 16 ry Check on for the vocabulary word(s). afact that you have memorize the #8 is to write it as 4. te There are 4 birdfeeders at the park and 3 birdfeed pl. Each birdfeeder has 4 perches. How many birds ca feeders at the same time