If it is known that 5+ 9 = 14, then it follows that 9+5=14, 14-9-5, and...

Transcribed Image Text:

If it is known that 5+ 9 = 14, then it follows that 9+5=14, 14-9-5, and 14-5=9. Many elementary texts call such a group of four basic facts a "fact family." (a) What is the fact family that contains 9 +4 = 13? (b) What is the fact family that contains 17-8=9? (a) What is the fact family that contains 9+ 4 = 13? OA. 9+4=13, 13-9+4, 13-9 4, and 4-13-9 OB. 9+4=13, 13-4+9, 13-9=4, and 9=13-4 OC. 9+4=13, 13-4+9, 13-9 4, and 4-13-9 OD. 9+4=13, 13-4+9, 13-4-9, and 9-13-4 O E. 9+4=13, 13-9+4, 13-49, and 9=13-4 (b) What is the fact family that contains 17-8=9? OA. 17-8-9, 17-9-8, 17=9+8, and 9+8=17 OB. 17-8-9, 17-9-8, 17-8+9, and 8+9=17 OC. 17-8-9, 9-17-8, 17=9+8, and 9+8=17 OD. 17-8-9, 17-8+9, 17-9+8, and 17-9=8 OE. 17-8-9, 9-17-8, 17-8+9, and 8+9=17 If it is known that 5+ 9 = 14, then it follows that 9+5=14, 14-9-5, and 14-5=9. Many elementary texts call such a group of four basic facts a "fact family." (a) What is the fact family that contains 9 +4 = 13? (b) What is the fact family that contains 17-8=9? (a) What is the fact family that contains 9+ 4 = 13? OA. 9+4=13, 13-9+4, 13-9 4, and 4-13-9 OB. 9+4=13, 13-4+9, 13-9=4, and 9=13-4 OC. 9+4=13, 13-4+9, 13-9 4, and 4-13-9 OD. 9+4=13, 13-4+9, 13-4-9, and 9-13-4 O E. 9+4=13, 13-9+4, 13-49, and 9=13-4 (b) What is the fact family that contains 17-8=9? OA. 17-8-9, 17-9-8, 17=9+8, and 9+8=17 OB. 17-8-9, 17-9-8, 17-8+9, and 8+9=17 OC. 17-8-9, 9-17-8, 17=9+8, and 9+8=17 OD. 17-8-9, 17-8+9, 17-9+8, and 17-9=8 OE. 17-8-9, 9-17-8, 17-8+9, and 8+9=17