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
33 − 10 = ______
15 + 20 = ______
6 × 10 = ______
52 − 10 = ______
69 − 10 = ______
56 + 20 = ______
43 + 20 = ______
54 + 10 = ______
59 + 10 = ______
3 × 10 = ______
2 × 10 = ______
40 + 10 = ______
80 + 10 = ______
79 + 20 = ______
71 + 10 = ______
47 − 10 = ______
70 + 20 = ______
76 + 10 = ______
35 − 10 = ______
7 × 10 = ______
