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 = ______
78 − 10 = ______
2 × 10 = ______
17 + 20 = ______
71 + 10 = ______
18 + 10 = ______
41 + 20 = ______
92 − 10 = ______
70 − 10 = ______
60 − 10 = ______
51 + 10 = ______
4 × 10 = ______
52 + 20 = ______
36 + 10 = ______
15 + 20 = ______
22 + 10 = ______
73 − 10 = ______
80 − 10 = ______
65 + 20 = ______
46 + 20 = ______
