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
60 + 20 = ______
92 − 10 = ______
5 × 10 = ______
81 + 10 = ______
71 + 10 = ______
83 + 10 = ______
35 + 10 = ______
42 + 20 = ______
8 × 10 = ______
46 − 10 = ______
29 + 10 = ______
40 − 10 = ______
2 × 10 = ______
3 × 10 = ______
37 − 10 = ______
19 + 20 = ______
39 − 10 = ______
35 − 10 = ______
72 + 10 = ______
76 + 20 = ______
