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
77 + 10 = ______
46 + 10 = ______
29 − 10 = ______
7 × 10 = ______
35 − 10 = ______
31 + 20 = ______
74 − 10 = ______
36 + 10 = ______
33 − 10 = ______
66 + 10 = ______
32 − 10 = ______
69 + 20 = ______
93 − 10 = ______
23 − 10 = ______
29 + 10 = ______
6 × 10 = ______
28 + 20 = ______
27 + 10 = ______
2 × 10 = ______
25 − 10 = ______
