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
9 × 10 = ______
85 + 10 = ______
24 + 20 = ______
87 − 10 = ______
72 + 20 = ______
22 − 10 = ______
42 + 10 = ______
68 + 10 = ______
45 + 10 = ______
81 − 10 = ______
76 + 10 = ______
4 × 10 = ______
51 + 20 = ______
44 + 10 = ______
68 − 10 = ______
59 + 10 = ______
2 × 10 = ______
71 − 10 = ______
29 + 20 = ______
23 − 10 = ______
