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
1 × 10 = ______
8 × 10 = ______
88 − 10 = ______
52 + 20 = ______
98 − 10 = ______
96 − 10 = ______
6 × 10 = ______
48 + 20 = ______
24 − 10 = ______
99 − 10 = ______
60 + 20 = ______
9 × 10 = ______
70 + 10 = ______
53 + 10 = ______
5 × 10 = ______
53 − 10 = ______
42 + 10 = ______
49 + 20 = ______
39 − 10 = ______
55 − 10 = ______
