Write 2subtraction facts for each addition fact.
8157+243=8400
8400-2438157 8400-8157243
Hence, 8400-243=8157and8400-8157=243 are 2subtraction facts.
786+114=900
Write a division fact for each of the repeated subtraction:
____-40-40=0
____÷_____=____
Also ____÷_____=____
28-7-7-7-7=___
____÷_____=_____
Also ____÷_____=_____