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
77 − 10 = ______
8 × 10 = ______
6 × 10 = ______
18 + 10 = ______
76 + 10 = ______
63 + 10 = ______
50 + 20 = ______
69 − 10 = ______
14 + 20 = ______
52 + 10 = ______
4 × 10 = ______
38 − 10 = ______
86 − 10 = ______
81 + 10 = ______
43 + 10 = ______
29 + 20 = ______
60 − 10 = ______
9 × 10 = ______
36 + 20 = ______
3 × 10 = ______
