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
2 × 10 = ______
12 + 10 = ______
7 × 10 = ______
28 + 20 = ______
36 + 20 = ______
85 − 10 = ______
87 + 20 = ______
73 + 10 = ______
61 + 10 = ______
42 − 10 = ______
60 + 10 = ______
1 × 10 = ______
99 − 10 = ______
4 × 10 = ______
36 + 10 = ______
3 × 10 = ______
8 × 10 = ______
6 × 10 = ______
9 × 10 = ______
76 + 10 = ______
