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 = ______
72 + 20 = ______
12 + 20 = ______
88 − 10 = ______
13 + 10 = ______
74 + 20 = ______
37 + 20 = ______
5 × 10 = ______
9 × 10 = ______
56 + 20 = ______
59 − 10 = ______
1 × 10 = ______
60 + 10 = ______
29 − 10 = ______
85 + 10 = ______
57 + 10 = ______
8 × 10 = ______
95 − 10 = ______
56 − 10 = ______
77 − 10 = ______
