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
49 + 20 = ______
86 + 20 = ______
1 × 10 = ______
72 − 10 = ______
54 + 10 = ______
4 × 10 = ______
34 + 20 = ______
33 + 10 = ______
27 + 10 = ______
45 + 20 = ______
29 + 10 = ______
83 − 10 = ______
78 − 10 = ______
8 × 10 = ______
28 + 20 = ______
79 + 20 = ______
95 − 10 = ______
2 × 10 = ______
39 − 10 = ______
39 + 20 = ______
