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
76 + 10 = ______
62 − 10 = ______
78 + 20 = ______
28 + 20 = ______
72 + 10 = ______
9 × 10 = ______
67 − 10 = ______
95 − 10 = ______
73 − 10 = ______
73 + 20 = ______
79 + 20 = ______
2 × 10 = ______
23 + 10 = ______
28 − 10 = ______
5 × 10 = ______
54 + 20 = ______
39 − 10 = ______
24 + 10 = ______
3 × 10 = ______
67 + 20 = ______
