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
51 − 10 = ______
83 + 10 = ______
62 − 10 = ______
34 + 20 = ______
64 − 10 = ______
79 − 10 = ______
8 × 10 = ______
76 − 10 = ______
79 + 10 = ______
1 × 10 = ______
31 + 20 = ______
89 + 10 = ______
25 + 20 = ______
5 × 10 = ______
23 + 20 = ______
6 × 10 = ______
40 + 10 = ______
4 × 10 = ______
85 + 10 = ______
29 + 10 = ______
