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
81 + 10 = ______
89 − 10 = ______
6 × 10 = ______
62 + 10 = ______
43 − 10 = ______
85 + 20 = ______
46 + 10 = ______
51 − 10 = ______
70 + 10 = ______
9 × 10 = ______
77 + 10 = ______
94 − 10 = ______
71 + 10 = ______
97 − 10 = ______
62 + 20 = ______
2 × 10 = ______
58 + 10 = ______
36 + 10 = ______
60 − 10 = ______
35 + 20 = ______
