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
80 + 10 = ______
76 + 20 = ______
40 + 10 = ______
26 − 10 = ______
81 − 10 = ______
54 + 20 = ______
2 × 10 = ______
47 + 20 = ______
27 − 10 = ______
3 × 10 = ______
49 + 10 = ______
72 − 10 = ______
7 × 10 = ______
80 − 10 = ______
40 − 10 = ______
5 × 10 = ______
63 − 10 = ______
93 − 10 = ______
86 + 10 = ______
14 + 10 = ______
