455×7

3

5

+111÷

5

96

+43.3×76
=455×7.6+111×

96

5

+433×7.6，
=（455+433）×7.6+111×19.2，
=888×7.6+111×19.2，
=111×8×7.6+111×19.2，
=（8×7.6+19.2）×111，
=（60.8+19.2）×111，
=80×111，
=8880．