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
86 + 10 = ______
56 − 10 = ______
4 × 10 = ______
22 + 10 = ______
78 + 20 = ______
46 + 10 = ______
46 − 10 = ______
19 + 20 = ______
7 × 10 = ______
93 − 10 = ______
3 × 10 = ______
70 + 20 = ______
84 − 10 = ______
46 + 20 = ______
88 + 20 = ______
45 − 10 = ______
57 − 10 = ______
67 + 20 = ______
2 × 10 = ______
9 × 10 = ______
