Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
3 × 10 = ______
73 + 20 = ______
39 − 10 = ______
9 × 10 = ______
76 + 10 = ______
65 + 10 = ______
65 − 10 = ______
70 + 10 = ______
37 + 10 = ______
78 + 10 = ______
4 × 10 = ______
38 + 10 = ______
93 − 10 = ______
43 − 10 = ______
60 + 20 = ______
26 + 10 = ______
71 − 10 = ______
20 + 10 = ______
50 + 10 = ______
5 × 10 = ______
