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
41 + 20 = ______
73 − 10 = ______
75 + 20 = ______
29 + 20 = ______
62 − 10 = ______
76 − 10 = ______
8 × 10 = ______
9 × 10 = ______
16 + 20 = ______
69 + 20 = ______
53 + 10 = ______
98 − 10 = ______
87 + 10 = ______
68 + 10 = ______
61 + 10 = ______
70 − 10 = ______
6 × 10 = ______
72 + 20 = ______
75 + 10 = ______
85 − 10 = ______
