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
76 − 10 = ______
85 + 20 = ______
87 − 10 = ______
3 × 10 = ______
19 + 10 = ______
48 + 10 = ______
1 × 10 = ______
6 × 10 = ______
53 + 20 = ______
7 × 10 = ______
61 − 10 = ______
88 + 20 = ______
39 − 10 = ______
68 + 20 = ______
70 + 20 = ______
55 + 10 = ______
35 + 20 = ______
76 + 10 = ______
5 × 10 = ______
8 × 10 = ______
