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
58 − 10 = ______
87 + 20 = ______
68 + 10 = ______
25 − 10 = ______
6 × 10 = ______
40 − 10 = ______
2 × 10 = ______
3 × 10 = ______
77 − 10 = ______
12 + 10 = ______
15 + 20 = ______
15 + 10 = ______
69 − 10 = ______
44 + 10 = ______
21 − 10 = ______
36 + 10 = ______
79 + 10 = ______
41 + 10 = ______
70 + 10 = ______
30 − 10 = ______
